# MRC_short2: Compute Multiple Regression shortcuts with three predictors... In pwr2ppl: Power Analyses for Common Designs (Power to the People)

## Description

Compute Multiple Regression shortcuts with three predictors for Ind Coefficients Requires correlations between all variables as sample size. Means and sds are option. Also computes Power(All)

## Usage

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33``` ```MRC_short2( ry1_1, ry2_1, ry3_1 = NULL, r12_1, r13_1 = NULL, r23_1 = NULL, n1, ry1_2, ry2_2, ry3_2 = NULL, r12_2, r13_2 = NULL, r23_2 = NULL, n2, alpha = 0.05, my_1 = 0, m1_1 = 0, m2_1 = 0, m3_1 = 0, s1_1 = 1, s2_1 = 1, s3_1 = 1, sy_1 = 1, my_2 = 0, m1_2 = 0, m2_2 = 0, m3_2 = 0, s1_2 = 1, s2_2 = 1, s3_2 = 1, sy_2 = 1 ) ```

## Arguments

 `ry1_1` Correlation between DV (y) and first predictor (1), first group `ry2_1` Correlation between DV (y) and second predictor (2), first group `ry3_1` Correlation between DV (y) and third predictor (3), first group `r12_1` Correlation between first (1) and second predictor (2), first group `r13_1` Correlation between first (1) and third predictor (3), first group `r23_1` Correlation between second (2) and third predictor (3), first group `n1` Sample size, first group `ry1_2` Correlation between DV (y) and first predictor (1), second group `ry2_2` Correlation between DV (y) and second predictor (2), second group `ry3_2` Correlation between DV (y) and third predictor (3), second group `r12_2` Correlation between first (1) and second predictor (2), second group `r13_2` Correlation between first (1) and third predictor (3), second group `r23_2` Correlation between second (2) and third predictor (3), second group `n2` Sample size, second group `alpha` Type I error (default is .05) `my_1` Mean of DV (default is 0), first group `m1_1` Mean of first predictor (default is 0), first group `m2_1` Mean of second predictor (default is 0), first group `m3_1` Mean of third predictor (default is 0), first group `s1_1` Standard deviation of first predictor (default is 1), first group `s2_1` Standard deviation of second predictor (default is 1), first group `s3_1` Standard deviation of third predictor (default is 1), first group `sy_1` Standard deviation of DV (default is 1), first group `my_2` Mean of DV (default is 0), second group `m1_2` Mean of first predictor (default is 0), second group `m2_2` Mean of second predictor (default is 0), second group `m3_2` Mean of third predictor (default is 0), second group `s1_2` Standard deviation of first predictor (default is 1), second group `s2_2` Standard deviation of second predictor (default is 1), second group `s3_2` Standard deviation of third predictor (default is 1), second group `sy_2` Standard deviation of DV (default is 1), second group

## Value

Multiple Regression shortcuts with three predictors for Ind Coefficients

## Examples

 ```1 2 3 4 5``` ```MRC_short2(ry1_1=.40, ry2_1=.40, ry3_1 =-.40, r12_1=-.15,r13_1=-.60, r23_1=.25, ry1_2=.40, ry2_2=.10, ry3_2 =-.40, r12_2=-.15,r13_2=-.60, r23_2=.25, n1=50,n2=50,alpha=.05,my_1=1,m1_1=1,m2_1=1,m3_1=1, sy_1=7,s1_1=1,s2_1=1,s3_1=2, my_2=1,m1_2=1,m2_2=1,m3_2=1,sy_2=7,s1_2=1,s2_2=1,s3_2=2) ```

pwr2ppl documentation built on April 4, 2021, 9:06 a.m.