intsvy (version 2.9)

pisa.ben.pv: PISA proficiency levels

Description

Calculates percentage of students at each proficiency level defined by PISA. Or at proficiency levels provided by the useR.

Usage

pisa.ben.pv(pvlabel, by, cutoff, data, atlevel=FALSE, 
export=FALSE, name= "output", folder=getwd())

Value

pisa.ben.pv returns a data frame with the percentage of students at each proficiency level and its corresponding standard error.

The total weight, "TOTWGT" and the cut-off points or benchmarks are defined in the config object.

Arguments

pvlabel

The names of columns corresponding to the achievement plausible scores.

cutoff

The cut-off points for the assessment benchmarks (e.g., cutoff= c(357.77, 420.07, 482.38, 544.68, 606.99, 669.30)).

by

The label for the grouping variable, usually the countries (i.e., by="IDCNTRYL"), but could be any other categorical variable.

data

An R object, normally a data frame, containing the data from PISA.

atlevel

A logical value. If TRUE, percentages at each level are calculated. Otherwise (FALSE), percentages at or above levels are reported.

export

A logical value. If TRUE, the output is exported to a file in comma-separated value format (.csv) that can be opened from LibreOffice or Excel.

name

The name of the exported file.

folder

The folder where the exported file is located.

See Also

timss.ben.pv, pirls.ben.pv

Examples

if (FALSE) {
pisa.ben.pv(pvlabel= paste0("PV",1:10,"MATH"), by="IDCNTRYL", atlevel=TRUE, data=pisa)
}