data.read.RdThis dataset contains \(N=328\) students and \(I=12\) items measuring reading competence. All 12 items are arranged into 3 testlets (items with common text stimulus) labeled as A, B and C. The allocation of items to testlets is indicated by their variable names.
data(data.read)
A data frame with 328 persons on the following 12 variables.
Rows correspond to persons and columns to items. The following items are
included in data.read:
Testlet A: A1, A2, A3, A4
Testlet B: B1, B2, B3, B4
Testlet C: C1, C2, C3, C4