writing2: Second hypothetical writing prompt example

In cddesja/hemp: Handbook of Educational Measurement and Psychometrics Using R Companion Package

Description

This is a hypothetical data set to demonstrate a partially nested two-facet design for generalizability theory. In this design, the raters are nested within students, W X (S:R). See chapter 3 of "Using R for Educational and Psychological Measurement" for more details.

Usage

writing2

Format

A data frame with 100 rows and 4 variables:

student

The student identifier

prompt

The writing prompt identifier. There were five prompts

rater

The rater identifier. There were two raters.

score

Student score on the writing prompt. Ranged from 4 - 100, with a maximum score of 100.

Source

Desjardins, C. D. & Bulut, O. (2017). Using R for Educational and Psychological Measurement.

Examples

library(lme4)
nested.design <- lmer(scores ~ (1 | students/raters) + (1 | prompts) + (1 | students:prompts), data = writing2)
gstudy(nested.design)

cddesja/hemp documentation built on April 7, 2021, 9:24 p.m.