Must have Software for Ed & Psych Associates

A standalone Macintosh program that performs a simple regression-based prediction of achievement for determination of a severe ability-achievement discrepancy. User enters an ability test score and the correlation between ability and achievement scores....

Estimates the sample size needed for a specified coefficient alpha, given the Type I error rate and the effect...

Estimates the sample size needed for a specified coefficient alpha, given the Type I error rate and the effect size.Requirements:Mac OS X 10.2 or...

Calculates positive predictive power, given prevalence and test results.Requirements:Mac OS X 10.2 or higher (Universal...

Body Mass Index Calculator is an easily calculated index of body fat for adults that uses only height and weight. The formula used in this Calculator is (Weight in Pounds * Height in Inches squared) x 703. The definitional formula is Weight in Kilograms *...

Body Mass Index Calculator is an easily calculated index of body fat for adults that uses only height and weight. The formula used in this Calculator is (Weight in Pounds / Height in Inches squared) x 703. The definitional formula is Weight in Kilograms /...

A standalone Windows program that calculates the chi-square statistic for 2x2 to 10x10 contingency tables. Also calculates the contingency coefficient, phi, and kappa statistics. The chi-square test is used to compare the distributions of two independent...

A standalone Macintosh program to compute the statistical significance of chi-square difference tests as typically used in comparisons of nested SEM models in EQS, LISREL, and Mplus SEM software as per Bryant and Satorra...

A standalone Macintosh program to compute the statistical significance of chi-square difference tests as typically used in comparisons of nested SEM models in EQS, LISREL, and Mplus SEM software as per Bryant and Satorra...

Eigenvalues are point estimates and confidence intervals (CI) can be constructed around them (Zientek & Thompson, 2007). Confidence intervals convey important information about the precision of population parameter estimates. For eigenvalues, Larsen and...