A - Z Statistics Terms


Index to Statistical Concepts and Principles

This is an index to terms found in behavioral science statistics associated with testing and research. I add to this list and expand on the terms along with examples. Please consider subscribing or book-marking the page to find new definitions and examples.


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Click the link following the >> to learn about the concept


Age scores >> AGE

alpha level (in research) >> alpha

alpha (Cronbach) reliability >> Reliability

alpha waves >> alpha



Bell curve >> Normal Curve

Categorical variable  >>  Categorical

Charts – Linear Trends  >>  Line Chart

Charts – Map example >>  Map Chart

Chi Square  >> Chi

Coefficient alpha >> Reliability

Confirmatory Factor Analysis   >>   CFA

Continuous variable  >> continuous

correlation, Pearson's r   >>  correlation

Cramer's V  >> Cramer's V

Data, datum  >>  Data

Dependent Measure  >>  DM

Dependent Samples t test  >>  Dependent t test

Dependent Variable  >>  DV

Exploratory Factor Analysis   >>  EFA

Factor Analysis   >>   FA

Four Types of Measurement   >> Scales

Grouping variable  >> Grouping

Independent Variable  >>  IV

Interval Scale  >> Scales

Kurtosis >>  Kurtosis

Lifespan – Life Expectancy Difference  >>  LifeStats


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Matched Pairs t test  >>  Matched t test

Mean >> Mean or Median

Median  >> Mean or Median

Mental Age >> mental age score

Nominal Scale >> Scales

Normal curve >>  Normal

Normal Distribution >>  Normal

Ordinal Scale  >> Scales

Ratio Scale  >> Scales

Regression  >> Regression

Reliability of tests >> Reliability

Scoring negatively worded items  >> Scoring Negative Items

Skew, skewed distributions  >>  Skew

Spearman-Brown >> S-B

Split-half reliability >> Reliability

Standard Deviation >> SD

Standard Error of Measurement  >>  SEM

Structural Equation Modeling    >>  SEM

t-test, Independent samples   >> t-test-Independent

Test Scores- how to compare >> Compare

Test-Retest reliability >> Reliability

Validity of tests  >> Validity

Variance >> VAR

z-scores  >>  z-scores


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