normal curve

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Related to normal curve: standard deviation

normal curve

normal curve

A bell-shaped curve which results when a normal distribution of data is graphed.

normal curve

Epidemiology A bell-shaped curve that results when a normal distribution is graphed. See Normal distribution.


(kurv) [L. curvus, bent, crooked]
A bend, chart, or graph.

bell curve

Normal distribution.

curve of Carus

See: curve of Carus

characteristic curve

Sensitometric curve.

dental curve

Curve of Spee.

D log E curve

Sensitometric curve.

dose response curve

A graph charting the effect of a specific dose of drug, chemical, or ionizing radiation.

dye-dilution curve

A graph of the disappearance rate of a known amount of injected dye from the circulation; used to measure cardiac function.

epidemic curve

A chart or graph in which the number of new cases of an illness is plotted over time.

Gaussian curve

Normal distribution.

growth curve

A graph of heights and weights, head circumference, and body mass index of infants and children of various ages. A line connecting the data points produces the curve. Usually the changes in height and weight are shown on the same chart. Growth charts are specific for age and gender.

learning curve

The effect of learning or practice on the performance of an intellectual or physical task. The term describes the acquisition of competence with experience, time, and training.

normal curve

Normal distribution.

receiver operating curve

Abbreviation: ROC curve
A plot of the fraction of true positives test results versus the fraction of false positive test results; the sensitivity of a test versus (1-the test specificity).
Synonym: receiver operating characteristic

sensitometric curve

In radiographic film analysis, the curve derived by graphing the exposure to the film versus the film density. Analysis yields information about the contrast, speed, latitude, and maximum and minimum densities of the film or film-screen system. Digital radiography systems exhibit linear curves.
Synonym: characteristic curve; D log E curve; Hurter and Driffield curve

curve of Spee

See: curve of Spee

Stephan curve

See: Stephan curve

survival curve

In radiobiology, a dose response curve.

time-temperature cooling curve

The mathematical relation that plots the physical and chemical behaviors of dental (and other) materials as their temperature decreases over time.
References in periodicals archive ?
The Five Integrative Topics: A View from the Present Normal Curves.
A normal curve equivalent is a standard score derived from the percentile rank that ranges from 1 to 99, with a mean of 50 and standard deviation of 21.
Table: Figure V Transformation of normal curve to analyze QC data
Understanding the standard normal curve is a good foundation for learning about power-law graphs in Years 11 and 12 (Padula, 2012).
In spiritual direction, the goal is to accompany directees on a journey toward normal kingdom living-far from the center of the world's normal curve.
For full-scale IQ, a normal curve derived from that mean and a variance equal to the mean square error of the regression yielded a cutoff of 92.
Normal Curve and Intelligence: When biological traits have been sampled randomly, plotting results in a distribution of scores close to the shape of the Bell Curve, recently popularized by Hermstein and Murray but first characterized by Bauss in the early 1800's.
In addition, Fast ForWord's Progress Tracker feature provides continuous monitoring, assessment and performance outcome data, while a fast, easy-to-use computerized assessment called Reading Progress Indicator provides a clear picture of every student's reading skills in terms of grade equivalents, percentile scores and normal curve equivalents.
Among the topics are educational researchers and the making of normal people, assessment and the policing of The Norm, the waiting dialogue about race and disability studies, and practitioner research as resistance to the Normal Curve.
If the growth achieved in the classroom is greater than expected, the model shows a positive Normal Curve Equivalent (NCE) gain.
She explains the purpose of statistical analysis, and details data and distributions, the normal curve, sampling and the Central Limit Theorem, confidence intervals, hypothesis testing, the null hypothesis, analysis of variance, the chi-square test, and correlation and regression.
Referring to the standard normal curve, this suggested These data indicated that matching students' learning-style preferences with educational interventions compatible with those preferences was beneficial to their academic achievement.