Glossary

A-C D-F G-I J-L M-O P-R S-U V-Z

alternative hypothesis
Analysis of variance
Bar graph
Between-subjects variable
Bias
Biased sample
Bimodal distribution
Binomial distribution
Box plot
Carryover effects
Categorical variable
Central tendency
Chi square distribution
Chi square independence test
Coefficient
Conditional probability
Confidence interval
Confounding
Consistency
Contingency table
Continuous variable
Correction for continuity
Correlation
Counterbalancing
Critical value
Criterion variable
Cumulative distribution

A-C D-F G-I J-L M-O P-R S-U V-Z

Degrees of freedom
Dependent variable
Descriptive statistics
Directional test
Discrete variable
Dispersion
Efficiency
Estimator
Expected value
Experimentwise error rate
F distribution
Factor
Factorial design
Fisher's z'
Frequency distribution
Frequency polygon
Frequency table

A-C D-F G-I J-L M-O P-R S-U V-Z

H-spread
Histogram
Homogeneity of variance
Homoscedasticity
Hypothesis testing
Independence
Independent variable
Inferential statistics
Interaction
Intercept
Interquartile range
Interval estimation
Interval scale

A-C D-F G-I J-L M-O P-R S-U V-Z

Kurtosis
Levels of a factor
Linear combination
Linear regression
Linear relationship
Linear transformation

A-C D-F G-I J-L M-O P-R S-U V-Z

Main effect
Mean
Mean Square Error
Median
Mode
Mutually exclusive events
Nominal scale
Nondirectional test
Normal distribution
Null hypothesis
One-tailed tests
Ordinal scale

A-C D-F G-I J-L M-O P-R S-U V-Z

Parameter
Pearson's correlation
Per-comparison error rate
Percentile rank
Population
Power
Probability value
Qualitative variable
Quantitative variable
Random sampling
Range
Range tests
Ratio scale
Regression line
Relative efficiency

A-C D-F G-I J-L M-O P-R S-U V-Z

Sample
Sample size
Sampling distribution
Sampling dist. of the mean
Sampling fluctuation
Scatterplots
Scheffe's test
Semi-interquartile range
Shrinkage
Significance level
Significance test
Simple effect
Skew
Slope
Spearman's rho
Spread
Standard deviation
Standard error
Standard error of estimate
Standard error of the mean
Standard normal distribution
Standard scores
Statistic
Statistical significance
Stem and leaf plots
Studentized range dist.
Sum of crossproducts
Summation notation
t distribution
t-test
Trimean
Trimmed mean
Two-tailed tests
Type I and II errors
Uniform Distribution

A-C D-F G-I J-L M-O P-R S-U V-Z

Variability
Variable
Variance
Within-subjects design
Within-subjects variable
Z score