plspm (version 0.4.1)

unidim: Unidimensionality of blocks

Description

Compute unidimensionality indices (a.k.a. Composite Reliability indices)

Usage

unidim(Data, blocks = NULL)

Arguments

Data

matrix or data frame with variables

blocks

optional list with vectors indicating the variables in each block

Value

• A data frame with the following columns:
• Block
  name of block
• MVs
  number of manifest variables in each block
• C.alpha
  Cronbach's alpha
• DG.rho
  Dillon-Goldstein rho
• eig.1st
  First eigenvalue
• eig.2nd
  Second eigenvalue

See Also

alpha, rho

Examples

# load dataset satisfaction
 data(satisfaction)

 # blocks Image and Expectations
 ima_expe = list(Image=1:5, Expec=6:10)

 # compute unidimensionality indices
 unidim(satisfaction, ima_expe)