Description Usage Arguments Value See Also Examples
Calculates percentage of students at each proficiency level defined by PISA. Or at proficiency levels provided by the useR. Use the pisa2015.ben.pv() for data from PISA 2015 study.
1 2 |
pvlabel |
The label corresponding to the achievement variable, for example, "READ", for overall reading performance. |
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. |
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. |
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.
timss.ben.pv, pirls.ben.pv
1 2 3 4 5 | ## Not run:
# Table I.2.1a, p. 298 International Report 2012 Volume I
pisa.ben.pv(pvlabel="MATH", by="IDCNTRYL", data=pisa)
## End(Not run)
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