Scale (version 1.0.4)

PreProc: PreProc Prepare Scale Data for Analysis

Description

Organizes data according to the information given in the ScaleData object. It reorders the items given in alternate orderings to participants, reverses items that need to be reversed, assigns the desired labesl to items and returns a structured object appropriate for the ItemAnalysis() function.

Usage

PreProc(sc)

Arguments

sc

ScaleData object, produced by the Scale function.

Value

data

A reversed and reordered - as needed - data.frame.

items

If an items vector is provided (see ScaleData), a character vector with the item statements.

See Also

ScaleData

Examples

data(Depression98)
depressionScale <- Scale(data=Depression98, 
                         orders=list(
                           c(16,19,11,9,1,17,5,18,4,8,2,12,
                             20,10,14,6,3,13,15,7),
                           c(1,18,4,15,7,8,3,14,20,6,19,16,
                             12,5,10,13,2,17,11,9)),
                         orders_id=c(
                           rep(1, 49),
                           rep(2, 49)),
                         reverse=c(3,4,13,14,18,20),
                         col_names= paste('q', 1:20, sep=''))
depressionPre <- PreProc(depressionScale)