paramS2 {lazy.irtx} | R Documentation |
Small Item Parameter Data Frame # 2. (8 items)
paramS2
A data frame with 8 rows and 7 variables
character: Item name
character: Item type
num: # of categories: 2 for binary items
num: First item parameter: slope
num: 2nd item parameter
num: 3rd item parameter
num: 4th item parameter
name type ncat p1 p2 p3 p4 Q11 B 2 0.9 0.0 NA NA Q12 B 2 0.9 1.0 NA NA Q21 B3 2 1.0 0.0 0.2 NA Q22 B3 2 1.0 1.0 0.2 NA Q31 G 3 1.0 -1.0 1.0 NA Q32 G 4 1.0 -2.0 0.0 2.0 Q41 P 3 0.8 -1.0 1.0 NA Q42 P 4 0.8 -2.0 0.0 2.0
item type = "B" or "B3" or "G" or "P"
ncat is the max # of categories
Generated by author.