Textbooks: Glass and Hopkins, 1995

## EDF 6407 Major Concepts

### For the Midterm

Frequency Distribution

Histogram

Frequency polygon

Box-and-whisker plot

Cumulative frequency distribution (ogive)

Stem-and-leaf plot

Percentile

Statistics (descriptive vs. inferential)

Variable

Value

Observational unit

Measurement

Scale of measurement

continuous vs. discrete

central tendency

normal curve

skewness

kurtosis

z-score

correlation

bivariate plot

cross-product

covariance

strength vs. direction

Pearson product-moment correlation

Spearman Rank Correlation

curvilinearity

restriction of range

outlier

regression equation

slope

y-intercept

predicted value

decomposition

SS regression

SS residual

coefficient of determination

### For the Final

population

sample

sampling distribution

parameters vs. statistics

central limit theorem

standard error

standard error of the mean

accuracy

precision

point estimate

interval estimate

confidence interval

null hypothesis

alternative hypothesis

Type I error

Type II error

power

Jacob Cohen

Z distribution

t distribution

One-mean Z test

One-mean t test

degrees of freedom

independent-means t test

correlated-means t test

effect size

assumptions

robustness

MS between

MS within

F test