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Measures of Central Value
Measures of Variability
16 other sections not shown
01 level ability apply aptitude arithmetic mean assume average beta coefficients betas biserial cent centile chance Chap class interval coefficient of correlation column combined common composite computed contingency table correction correlation ratio corresponding criterion decimal place degrees of freedom derived determined diagram difference discrepancies equal error variance example expected frequencies experimental factors formula given gives illustrated indicated individuals intercorrelations interpretation kind limits measurements median method midpoint multiple normal curve normal distribution null hypothesis obtained pairs Pearson percentage phi coefficient prediction probably problem procedure proportion Psychology random sampling range rank ratio raw scores regression equation relationship reliability represent responses rows sample mean sampling distribution sampling statistics scale selection significant skewed solution square root standard deviation standard error standard scores statistics Step sum of squares symbols test scores tion units validity coefficient values weight zero