paramCal1 {lazy.irt}R Documentation

Small Item Parameter Data Frame for Testing cala and calr #1.

Description

This data frame contains three sets of estimated item parameters of binary items distributed across three test forms.
The item parameters were estimated independently for each form.

Usage

paramCal1

Format

A data frame with 33 rows and 8 variables.
Basically, the structure is the same as the parameter data frame
except that the first column containing the form name is added.

gfid

character: Form name

name

character: Item name

type

character: Item type

ncat

num: # of categories: 2 for binary items

p1

num: First item parameter: slope

p2

num: 2nd item parameter

p3

num: 3rd item parameter

Details

gfid name type ncat p1 p2 p3
form1 QB1 B2 2 1.0000000 -1.00000000 0.0000000
form1 QB2 B2 2 1.0000000 0.00000000 0.3000000
form1 QB4 B3 2 0.8000000 1.00000000 0.2000000
form1 QB5 B2 2 1.0000000 -1.30000000 0.0000000
form1 QB6 B2 2 1.0000000 0.30000000 0.3000000
form1 QB7 B3 2 1.0000000 1.30000000 0.2000000
form1 QB8 B3 2 0.8000000 0.70000000 0.2000000
form1 QB11 B2 2 1.2000000 -1.00000000 0.0000000
form1 QB12 B2 2 1.2000000 0.00000000 0.3000000
form1 QB14 B3 2 1.0000000 1.00000000 0.2000000
form1 QB15 B2 2 0.8000000 -1.00000000 0.0000000
form1 QB16 B2 2 0.8000000 0.00000000 0.3000000
form1 QB17 B3 2 0.8000000 1.00000000 0.2000000
form1 QB18 B3 2 0.7000000 1.00000000 0.2000000
form2 QB1 B2 2 0.9736860 -2.57272092 0.0000000
form2 QB3 B3 2 0.7560111 0.04149805 0.3905005
form2 QB5 B2 2 0.7700730 -2.90974572 0.0000000
form2 QB7 B3 2 1.0288158 0.65955944 0.2237003
form2 QB11 B2 2 1.1783210 -2.51973224 0.0000000
form2 QB13 B3 2 1.0667175 0.20900095 0.4426091
form2 QB15 B2 2 0.7748544 -2.41498863 0.0000000
form2 QB17 B3 2 0.6003595 0.18576845 0.2764597
form2 QB2 B2 2 0.9845137 -1.11132899 0.3000000
form2 QB6 B2 2 0.9434385 -0.75960242 0.3000000
form3 QB2 B2 2 1.4515893 0.91079758 0.3000000
form3 QB4 B3 2 1.2179065 1.75344958 0.2100962
form3 QB6 B2 2 1.5139847 1.16847211 0.3000000
form3 QB8 B3 2 1.1706377 1.56182045 0.3502745
form3 QB12 B2 2 1.6937542 0.99698111 0.3000000
form3 QB14 B3 2 1.4473557 1.75645583 0.3786156
form3 QB16 B2 2 1.1834637 0.79398007 0.3000000
form3 QB18 B3 2 0.9699614 1.79807714 0.4093079
form3 QB1 B2 2 1.4712936 0.17616872 0.0000000#'

Source

Generated by author.


[Package lazy.irt version 0.1.3 Index]