sirt (version 0.34-36)

data.long: Longitudinal Dataset

Description

This dataset contains 200 observations on 12 items. 6 items (I1T1,... ,I6T1) were administered at measurement occasion T1 and 6 items at T2 (I3T2,... , I8T2). The first column contains the student identifier.

Usage

data(data.long)