Corrected item-total correlations

Corrected item-total correlations

Usage

morie_psymet_itemtotal(data)

Arguments

data

Numeric matrix / data.frame.

Value

data.frame with columns item, r_total, r_corr.

Examples

set.seed(1)
f <- rnorm(50)
X <- sapply(1:5, function(j) sqrt(0.6) * f + sqrt(0.4) * rnorm(50))
colnames(X) <- paste0("i", 1:5)
out <- morie_psymet_itemtotal(X)
out
#>   item   r_total    r_corr
#> 1   i1 0.7736271 0.6271825
#> 2   i2 0.8541029 0.7506852
#> 3   i3 0.6644147 0.4992338
#> 4   i4 0.7930102 0.6383697
#> 5   i5 0.7422859 0.5895492