Extent to which a small change in concentration of an analyte can cause a large change in the related measurement. Gold, Loening, McNaught and Sehmi, 1987

Extent (usually expressed as a percentage) to which a method gives results that are free from false negatives; the fewer the false negatives, the greater the sensitivity. Quantitatively, sensitivity is the proportion of truly diseased persons in the screened population who are identified as diseased by the screening test. Galen and Gambino, 1975 RT specificity (of a screening test)

the likelihood that a test will successfully show a person to have a certain disease or condition

Refers to the probability that a test will be positive when the disease is present. (see Specificity, Positive Predictive Value and Negative Predictive Value).

A detector's ability to detect radar. Most radar detector manufacturers increase sensitivity as they add features and move up the product line.

In a screening test, is the proportion of those whose screening test was positive who, on diagnostic testing, turned out to have the disease.

a measure of how bright objects need to be in order for that telescope to detect these objects. A highly sensitive telescope can detect dim objects, while a telescope with low sensitivity can detect only bright ones. (See also text in HighPlanDish and GtrSensitiv.)

Proportion of people with the target disorder who have a positive test. It is used to assist in assessing and selecting a diagnostic test/sign/symptom.

An instrument's ability to identify people who have the characteristic under investigation.;( % of people w/ characteristic who are correctly identified by instrument)/(# of people w/ characteristic)

the probability that a diagnostic test can correctly identify the presence of a particular disease assuming the proper conduct of the test; specifically, the number of true positive results divided by the sum of the true positive results and the false negative results; see specificity

The probability that a test will be positive, given that the condition to be detected is present.

maximum recommended distance between the sensor and standard target at which sensor will effectively and reliably detect the target.

The proportion of individuals with the abnormality or disease that will have a positive test.

is the proportion of people with disease who have a positive test. See also SpPins and SnNouts.

(of a test); The proportion of cases with a condition that are correctly classified by the test as having the condition. Number of true positive cases divided by the number of true positive and false negative cases. Tests with high sensitivity are likely to find a condition if it exists. [See accuracy, prevalence, specificity

The probability that a patient with a disease, condition or injury will test positive by a particular test for the problem.

Sensitivity describes the ability of the audio sensor to detect sounds. Sounds below the sensitivity setting will not cause an audio activation. Sounds above the sensitivity setting will cause an activation.

In tests of validity, the percentage of all true cases identified correctly. See specificity.

For a diagnostic procedure, the conditional probability of a positive result given that disease is present

True positive rate (see Confusion matrix).

The smallest increment that can be reliably detected. This is the calculated value based on optical density statistical data from the Bo and lowest concentration standard.

The estimated sensitivity (synonym: True Positive Rate) of a diagnostic test is the estimated (or assumed) proportion of animals with the disease (or infection) of interest which test positive. It is a measure of the probability that a diseased individual will be correctly identified by the test. Sometimes called "population sensitivity" to distinguish from "analytical sensitivity". Important note For pooled testing, sensitivity is estimated at the pool level, so that in this context, sensitivity is the probability that a pool which includes samples from one or more infected individuals will test positive. Pool-level sensitivity is therefore affected by both prevalence and pool size. The higher the prevalence, the more infected individuals that will be represented in individual pools and the more likely a pool is to test positive and therefore the higher the sensitivity. This is in contrast to individual-level sensitivity, which is independent of prevalence. Conversely, the larger the pool size, the greater the dilution of any positive individual samples, potentially reducing sensitivity.

(Test)—the probability that a diagnostic test for a particular disease or pathogen will detect a true positive when it is present. This is distinct from the general use of the term to indicate a threshold of detection.

ability of an analytical method to detect small concentrations of radioactive material.

"Probability that a test result will be positive when the disease is present (true positive rate, expressed as a percentage)." (see http://www.medcalc.be/manual/mpage06-13a.html).

in medical screening, the proportion of individuals with a positive (indication of disease) screening result who actually have the disease.  For example, for women who have mammograms, the sensitivity would be the number of women with a positive mammogram who actually have breast cancer.

The smallest difference in input that is required to cause a detectable output change expressed as inches of water column.

Is determined by the division of the number of true positives by the total number of patients who have the disease.

The ability of a test to detect clients who have the disease or condition for which they are being tested.

When discussing how good a particular test is, people talk about sensitivity. Sensitivity is a way of measuring how sensitive a test is to the condition; how good it is at finding the condition. When a test is very sensitive it will pick up all the cases of the disease. When a test is not very sensitive it will miss some of the cases. This means that a screening test which is not very sensitive will show that some people do not have the condition, when actually they do, but the test wasn't sensitive enough to pick them up. When people are told that they do not have a condition, but really they do, this is called a false-negative result. Tests that are not very sensitive produce more false-negative results.

measure of the reaction to a diagnostic test.

(of a diagnostic test): the proportion of truly diseased persons, as measured by the gold standard, who are identified as diseased by the test under study. ( Diagnosis) To Calculation

The proportion of people who test as positive to a disease who really do have the disease.

minimum detectable signal change

an operating characteristic of a diagnostic test that measures the ability of a test to detect a disease (or condition) when it is truly present. Sensitivity is the proportion of all diseased patients for whom there is a positive test, determined as: [true positives ¸ (true positives + false negatives)]. (Contrast with specificity.)

The probability of a positive result, given that the condition under consideration is true – for example, the probability of a positive test result in a person who has the disease under consideration (also called the true-positive rate).

The ability of a test to detect the proportion of true positive results for the disease that the test is intended to reveal. In other words, the probability that, given the presence of disease, a test result indicates the presence of disease.

The proportion of patients with the target disorder who have a positive test result.

The measure or capacity of a metal detector to perceive changes in conductivity within the loops detection pattern.

The ability of a system to detect epidemics and other changes in disease occurrence. The proportion of persons with disease who are correctly identified by a screening test or case definition as having disease.

The ability of an assessment procedure or instrument to detect clinically meaningful change.

1. The minimum detection limit of an assay. 2. The degree to which a pathogen is susceptible to a drug. A virus that is not resistant to a drug is sensitive to that drug.

Analytical - The probability that a test will detect an analyte when it is present in a specimen. Clinical - The probability that a person with a disease, or who will get a disease, will have a positive test result.

A measure of the minimum change in an input signal that an instrument can detect.

the smallest change in a physical quantity or parameter that can be detected by a measuring system. Determined by signal to noise ratio, system amplification and / or quantizing limit

proportion of infected animals tested correctly identified.

the ability of an organism to be affected by a drug or other agent (e.g., a virus is sensitive to AZT if AZT is able to prevent viral replication). Sensitivity also refers to a statistical measure of the accuracy of a screening test, i.e., how likely a test is to label as positive those who have a disease or condition. Contrast with specificity.

Proportion of people who are correctly identified by screening as having a disease.

Measures a test's ability to detect the presence of disease when an individual actually has the disease.

For quantitative test devices: The smallest concentration of a drug or drug metabolite that produces a response distinguishable from the background or blank value. For qualitative test devices: The minimum concentration of a drug or drug metabolite that is capable of generating a positive test result. In qualitative test devices, this amount is generally the same as the cutoff concentration.

the rate in counts per second that true coincidence events are detected for a given source activity and it has as a unit of measure counts/sec/MBq (NEMA definition)

The frequency with which a test yields a positive result when the individual being tested is actually affected and/or has the gene mutation in question

refers to the lowest level of PPM capable of detection by a gas leak detector. Generally, FID units are the most sensitive. Many semi-conductor sensors are only sensitive down to 10 to 300 PPM range.

Proportion of positive test results when a specific finding is truly present in a population.

a measure of a diagnostic test’s ability to correctly detect a disorder when it is present in a sample of people.

This is the smallest detectable amount of the analyte in question..

A term used to assess the value of a diagnostic test, procedure, or clinical observation. It is the proportion of people who actually have a specific disease and are identified by a particular test as such.

In psychology, the quality of being sensitive. As, for example, sensitivity training, training in small groups to develop a sensitive awareness and understanding of oneself and of ones relationships with others. In disease epidemiology, the ability of a system to detect epidemics and other changes in disease occurrence. In screening for a disease, the proportion of persons with the disease who are correctly identified by a screening test. In the definition of a disease, the proportion of persons with the disease who are correctly identified by defined criteria.

Smallest detectable amount of the analyte in question; analyte may include antibodies, antigens, nucleic acids or live organisms..

Proportion of known infected reference animals that test positive in the assay; infected animals that test negative are considered to have false-negative results..

Proportion of reference animals, defined as positive by one or a combination of test methods, that also test positive in the assay being compared..

The proportion of truly positive units that are correctly identified as positive by a test.

The sensitivity of a camera is often configured on your digital surveillance system. Motion Detection based recording uses relies on the sensitivity of the cameras to trigger recording

The capacity of a metal detector to perceive changes in conductivity within the detection pattern. Generally, the more sensitivity a detector can smoothly provide, the more depth it will achieve in sensing targets.

The ability of a diagnostic test to distinguish between truly diseased and truly healthy individuals.

(For a screening tests) The ability of a test to identify correctly all screened individuals who actually have the disease. ( 4-18)

Measure of how good a test is at discovering a disease when it is truly present

The minimum change of signal level or strength that can be detected by an instrument.

The sensitivity of a diagnostic or screening test is the proportion of people who truly have a designated disorder who are so identified by the test. The test may consist of or include clinical observations.

The proportion of time a diagnostic test is positive in patients who have the disease or condition. A sensitive test has a low false-negative rate.

is the proportion of people with disease who have a positive test. See also Calculating Sensitivity and Specificity.

The probability that a test result is positive when the subject has the disease. Synonyms include true positive rate. Sensitivity = a/n1 = TP/(TP+FN).

The sensitivity of a test is the probability of it giving a positive result if infection is truly present. As the sensitivity of the test increases the proportion of false negatives decreases.

The proportion of people with a disease who are correctly diagnosed (test positive based on diagnostic criteria). The higher the sensitivity of a test or diagnostic criteria, the lower the rate of 'false negatives,' people who have a disease but are not identified through the test.

When referring to a medical test, sensitivity refers to the percentage of people who test positive for a specific disease among a group of people who have the disease. No test has 100% sensitivity because some people who have the disease will test negative for it (false negatives).

the relationship of analyte concentration to instrument response. Mathematically, this is the slope of the linear plot of "instrument response vs. analyte concentration". Traditionally, in AA, the sensitivity is defined as the concentration of analyte that produces an instrument response of 0.0044 absorbance units (1% absorption).

In radio terminology, the degree to which a receiver will respond to an input of given strength. The greater the sensitivity, the weaker are the signals detected. See threshold signal.

The extent to which a diagnostic test correctly detects an abnormality. In defining a laboratory test's accuracy, sensitivity indicates the frequency of positive test results in patients who have the specific disease being tested for.

Sensitivity is a statistical measure of how well a binary classification test correctly identifies a condition, whether this be medical screening tests picking up on a disease or quality control in factories deciding if a new product is good enough to be sold.

The sensitivity of an electronic device, e.g., a communications system receiver, or detection device, e.g., PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria.

The ability of a smoke detector to respond to a given level of smoke.

The capacity of a system to respond to stimulation. Awareness of the needs and emotions of others to avoid hurt. [D03267] RMW

Sensitivity refers to how much power the speakers require to play a certain volume. A highly sensitive speaker will require less power than one with low sensitivity. This makes higher sensitivity more power efficient. Standard sensitivity ratings for a mid-range speaker vary from around 85 dB (decibels: unit of measuring volume) to 95 dB per 1 watt of power.

the ratio of the output value to the input value.

Refers to the Output of a Speaker given a Specified amount of Power. Measured in dB's and at a distance of usually 1 meter. A Sensitive Speaker fed with 1 Watt of Power and Producing a 90dB output, would be twice as loud as an Insensitive Speaker given the same amount of Power but only Producing 80dB.

The ratio of the output of an instrument to the input value, i.e. a rain gauge with a sensitivity of 1 tip per 0.01".

A measure of how much sound a speaker produces for a given amount of input power. speaker sensitivity is measured by driving a speaker with 1W of power and measuring the sound-pressure level from a distance of 1 meter.

Of a camera, usually specified in LUX, should be the amount of light falling upon an imaging device to produce a video signal of 1-volt peak to peak. Confusingly, it is often referred to as the amount of light at the lens, which is not technically accurate and can be misleading unless the lens specification is provided in detail, including its light transmission value.

1. The ability of a microphone to pickup very quiet sounds results in a higher sensitivity number. 2. The ability for a speaker to produce a louder sound when fed the same amount of power as another speaker. The SPL output for a given input level (usually tested with 1 watt of input power with a test instrument 1 meter directly in front of the speaker). 3. The ability of a wireless microphone receiver to pickup very weak RF signal levels.

The ratio of a change in response to a change in an undesirable or secondary input (as the scale factor variation to a unit of power supply voltage change).

The ability of a shortwave radio to repond to weak signals. It is measured in microvolts. The lower the measurement in microvolts, the fainter the signal the radio can receive.

The degree to which an indicator responds to the changes in the market. For example, the rate-of-change of the moving average in response to the movement of the market.

A proportionality constant that relates the output of a sensor to the input.

Response of an electrical circuit or transducer to a given input. Speaker sensitivity is tested by driving the speaker with a broadband signal at a strength of 2.83 volts, or 1 watt, and measuring the acoustical output of the speaker at a distance of one meter. Often referred to interchangeably as efficiency.

The amount of change in a variable produced by a given change in a factor input (eg. a change in earnings per share caused by a change in interest rates or A$).

The rating of a loudspeaker that indicates the level of a sound intensity that the speaker produces (in dB) at a distance of one meter when it receives one watt of input power. Also sometimes incorrectly called efficiency, sensitivity is a measure of how much volume a speaker can produce when given a 2.83 volt (1 watt) signal. Although this specification has nothing to do with sound quality, speakers with higher sensitivity numbers may help you make the most of the amplifier power you've got.

Light level required to gain a full video signal from the camera. usually specified in LUX.

In wired microphones, phono cartridges, etc., the amount of output for a given input. In RF receivers, the amount of input signal a device requires in order to produce a reference quality of output.

How well a radio can receive signals. Some radios are more sensitive than others, meaning they'll pick up more stations from further distances.

This is a measure of how much you get out for what is fed in. Buying speakers that are more sensitive can save you money on amplification if loudness is your bag.

is often used to describe a particular detector's ability to find small targets. It is also a term used to describe the output power of a detector. Some operators make the wrong assumption that more sensitivity means more depth. In hot ground, reducing the sensitivity will provide you with a smoother background threshold, allowing you to hear a deep target response.

The minimum light level required at the CCD chip in a camera to generate a usable video picture

The measure of sound pressure level produced at a distance of 1 metre for a given input voltage of 2.83V (equivalent to an input power of 1 watt for an 8 ohm load).

the slope of the response (calibration) curve expressed as output per unit concentration.

the ability to respond to physical stimuli or to register small physical amounts or differences; "a galvanometer of extreme sensitivity"

the ability to respond to affective changes in your interpersonal environment

a measure of the relative efficiency of a speaker or loudspeaker system, often expressed as the number of decibels the unit will produce fed from a 1-watt signal measured at a distance of 1 meter.

Sensitivity is a measure of the minimum signal that a telescope can distinguish above the random background noise. All other things being equal, a telescope of larger primary mirror or lens is more sensitive than one with a smaller primary.

Usually measured in decibels. In speakers it is expressed as a sound pressure level for a standard unit of power, one Watt, at a distance of one Meter.

The ability of a receiver to pick up low-amplitude signals.

A term used to indicate how well a metal detector responds to small targets. Also, a variable control to adjust the detector's response to all targets, especially small, low-conductive ones.

The minimum change in input signal required to produce an output change in the controller.

This is a manual adjustment that allows users to fine-tune the fish finder to see the most underwater detail with the least visual noise. For anglers who'd rather spend more time fishing than adjusting, Advanced Signal Processing does this automatically, and is a feature of all Eagle sonar units.

A measure of the ability of a receiver to respond to weak signals.

A measure of the efficiency of a loudspeaker. A typical sensitivity figure for a loudspeaker is 87dB. A high sensitivity 94dB or more. A low sensitivity is 80dB or less. (See Efficiency). Low sensitivity loudspeakers require a high amplifier power output to obtain realistic volume levels. High sensitivity loudspeakers will be happy working with low power output amplifiers (20W per channel maximum or lower).

The quantity of input signal level usually specified to allow the amplifier to go to full power with all the controls up.

A standardized measure of the sound output of a loudspeaker for a known input signal. Originally, the input power was 1 watt. Nowadays, the input is standardized to 2.83 volts (1 watt into 8 ohms). Measurements are made on axis in an anechoic space, at a distance that places the microphone in the far-field of the loudspeaker system, and then the sound pressure level is calculated for a microphone distance of 1 meter. A measurement distance of 1 meter is too close for all but single drivers and very small loudspeaker systems. See also: Far Field, Input Sensitivity.

In model application, the degree to which the model result is affected by changes in a selected model input representing hydrogeologic framework, hydraulic properties, and boundary conditions.

The minimum signal level that can be successfully captured and decoded by a receiver, specified in dBm.

A measure of the minimum electromagnetic signal that can be reliably identified by the receiver. This value is typically established in controlled conditions in the laboratory.

The loudness of a speaker at a given voltage. Usually measured at 2.83 volts, at 1 meter straight in front of the speaker and excluding reflected energy.

The sound pressure level directly in front of the speaker (on axis) at a given distance and produced by a given amount of power.

A rating given in dBV to express how "hot" the microphone is by exposing the microphone to a specified sound field level (typically either 94 dB SPL or 74 dB SPL,). This specification can be confusing because manufacturers designate the sound level different ways. Here is an easy reference guide: 94 dB SPL = 1 Pascal = 10 microbars. To compare a microphone that has been measured at 74 dB SPL with one that has been measured at 94 dB SPL, simply add 20 to the dBV rating.

amount of voltage output per unit of parameter measured.

How well a headphone responds (in volume) to the electrical signal feeding it. The greater the sensitivity of a headphone, the higher the volume level produced by a headphone.

Sensitivity refers to the minimum amount of light needed for the pick-up device to operate

At a set gain, the sensitivity of an electron multiplier is the level of output for a given amount of input signal (not to be confused with gain which is the multiplier's amplification).

The capability of a controller to measure and respond to variations in a controlled condition.

1) Volume of sound delivered for a given electrical input. 2) In microphones, the output level produced by a standard amount of sound pressure level.

The degree of the response of the output of mathematical models to a change of the magnitude of the input parameter(s).

A measurement (in dB) of the sound-pressure level over a specified frequency range created by a speaker driven by 1 watt (2.83V at 8 ohms) of power with a microphone placed 1 meter away.

Given a Boolean function f:{0,1}n-{0,1}, the sensitivity sX(f) of an input X=x1...xn is the number of variables such that flipping them changes the value of f(X). Then s(f) is the maximum of sX(f) over all X.

The sensitivity of a receiver is taken as the minimum signal level required to produce an output signal having a specified signal-to-noise ratio.

The ratio of the change in output to the mechanical input.

A camera's ability to reproduce a given scene with a given amount of light. Usually expressed in foot-candles or lux.

the degree to which a system will respond to a change in climatic conditions (e.g., the extent of change in ecosystem composition, structure and functioning, including net primary productivity, resulting from a given change in temperature or precipitation)

Measure of the ability of metal detector to sense the electromagnetic field around a target. Detector's sensitivity measures its ability to find small targets. In normal conditions higher sensitivity also corresponds to greater depth

The degree to which a detector responds to electromagnetic energy incident upon it.

The minimum input signal required to produce a specified level of output

A standardized speaker measurement that determines how loud a system will sound under controlled conditions. The standard procedure agreed upon by the industry is output, in dB at 1 meter with 2.83 volts applied, which will amount to 1 watt at 8 ohms (2 watts at 4 ohms). while sensitivity has little bearing on overall sound quality, it will be a factor in determining the required amplifier power.

The minimum change in input signal to which an instrument can respond.

A measurement of how much power is required for a loudspeaker to achieve a certain output level. The general standard used is on-axis SPL (Sound Pressure Level) at 1 watt input, 1 meter distance.

Reference efficiency value of a speaker; it is measured in decibels and at a distance of one meter, with 2.83 Volts in the input.

A measure of the amount of input signal a device requires in order to produce a standard output level. Example: Response of a microphone to sound pressure.

A term used to describe the required light level needed to produce a desired signal.

A measurement of how loud a speaker will play with a given amount of amplifier power. Higher dB (decibel) ratings mean speakers will play louder given the available amplifier power. While greater sensitivity is a good thing, it has NOTHING to do with sound quality.

(pickup device) The amount of current developed per unit of incident light. It can be measured in watts with the projection of an unfiltered incandescent source of light at 2870 K degrees to the pickup device surface area. It can be then expressed in foot-candles.

The minimum input required to produce output motion or the ratio between output motion and input drive. Applicable particularly to manually actuated motion devices.

The degree to which economic conditions respond to certain stimuli. For example, employment demand in the trucking and warehousing industry might be particularly sensitive to fuel prices.

A measure of a receiver's ability to viably receive weak radio signals.

In television, a factor expressing the incident illumination upon a specified scene required to produce a specified picture signal at the output terminals of a television camera.

The amount of responsiveness to an incident light on the pickup device (CCD) on a camera, indicating how much the device is affected or changed by light.

Related to efficiency, speaker sensitivity is specified in terms of the sound pressure level (SPL) in decibels, generated at a specific distance from the speaker when a specified signal level is applied.

A measure (in decibels of sound-pressure level) of how much sound comes out when 1 watt of power is put in. The measuring microphone is placed one meter away from the speaker.

Change in the response of a measuring instrument divided by the corresponding change in the stimulus. Sensitivity is the minimum input that will result in a discernible change in input.

Similar to responsivity of a camera sensor but numerically different. It is the signal current per unit of illuminance on the faceplate in lumens. It is expressed in amps/lumen. Unless otherwise specified, the radiation is understood to be that of an unfiltered incandescent source at 2,856 degrees K.

1. The input signal level required by a tuner, amplifier etc, to be able to produce a stated output. The lower the necessary output, the higher the sensitivity required.

Generally refers to detector sensitivity, which is the ability of the detector to give larger bands (other factors equal) and a better signal-to-noise ratio. This provides more precise analyses of very small concentrations of sample.

A measure of the minimum amplitude of input signal change to which an instrument will respond. This is a measurement of thermal resolution.

A pacemaker parameter which determines the amplitude of signals to which the device's sense amplifiers will respond. Sensitivity is stated in millivolts. Note that the higher the millivolt value, the lower the sensitivity. (If sensitivity is 6 mV, a signal has to be 6 mV or larger before the signal is recognized; on the other hand, if sensitivity is 2 mV, a signal only has to be 2 mV or larger before it is recognized. Thus the lower the mV value, the more sensitive the device.)

For a fiberoptic receiver, the minimum optical power required to achieve a specified level of performance, such as BER.

The sound pressure level a speaker produces when fed by a given input power, measured at a specific distance on axis directly in front of the speaker. Typically specified in dB SPL at 1 meter with 1 watt of input signal.

For an ammeter, the amount of current that will cause full-scale deflection of the meter. For a voltmeter, the ratio of the voltmeter resistance divided by the full-scale reading of the meter; expressed in ohms per volt. The ability of a receiver to reproduce very weak signals. The greater the receiver sensitivity, the weaker the signal that can be reproduced. (4) Efficiency of a microphone. Describes microphone power delivered to a matched-impedance load as compared to the sound level being converted. Usually expressed in terms of the electrical power level.

A measurement of the sound output of a speaker or speaker system's output relative to the power put in. Typically measured in dB at 1 watt of input, 1 meter away.

The ratio of change in transducer output to a change in the value of the measurand.

The volume that a speaker will offer for a specific voltage input, expressed in decibels per watt (dB/W).

For a fibre optic receiver, the minimum optical power required to achieve a specified level of performance, such as bit error ratio.

A receiver's sensitivity is a measure of its ability to discern low level signals.

The ratio of the response of a system or device to the stimulus.

Tendency to be acutely affected by a stimulus or substance.

The sensitivity or insensitivity of a human, often considered with regard to a particular kind of stimulus, is the strength of the feeling it results in, in comparison with the strength of the stimulus. The concept applies to physical as well as emotional feeling.

The degree to which a person is affected by external stimuli.

Degree of responsiveness of a film to light.

The degree to which an organism is affected by a drug. See also Resistance.

The degree to which a photographic emulsion reacts to light. Fast film, for example, has greater sensitivity than slow film.

With traditional film cameras, sensitivity, also known as ISO, represents the film's sensitivity to light. A lower ISO number means that the film needs more light to take a picture than does film with a higher ISO. Because digital cameras do not use film, manufacturers have had to create "sensitivity" settings. Some digital cameras only operate at one sensitivity level — others offer sensitivity settings of 100, 200 and 400, to mimic the effects of using film with a speed of 100, 200 or 400. These settings can be very useful; however, because they are achieved artificially, in some cameras they can result in slightly increased noise and color saturation.

See ISO

Sensitivity means the degree to which photographic emulsion reacts to a light source. Fast film such as ISO 1600 has greater sensitivity than slow film such as ISO 100.

A general description of how one variable changes in relation to another. For bond investing, measures of price sensitivity are used to show how much a bond or portfolio of bonds changes in price for a given change in market yield. See duration.

A term referring to the amount of current developed per unit of incident light. It is measured in footcandles.

the ability of a measurement instrument to discriminate among meaningful differences in the variable being measured.

The ratio of the intact strength of a soil to its distrurbed strength.

A variable’s level of change caused by a change in another variable.

A measure of the change in strength of clays upon disturbance: For ordinary clays St = 1 to 4, sensitive clays 4 to 8, ‘quick' clays 16 - 100.

The responsiveness to heat of thermal media or thermal transfer ribbon. Sensitivity is determined by the time required for a unit measure of heat to affect the media or ribbon.