Reshape MCQ data wide to long

Usage

wide_to_long_mcq(dat, items = 27)

Arguments

dat: Wide format MCQ assuming subject id is in column 1 and one column per item after it
items: Number of MCQ questions; must equal ncol(dat) - 1

Value

Long format data frame

Details

Items are numbered by column position within each wide row, so the result has items rows per input row whatever the subject ids are. Repeated or missing subject ids are left for the scoring functions to report.

Examples

wide_to_long_mcq(long_to_wide_mcq(mcq27))
#> # A tibble: 54 × 3
#>    subjectid questionid response
#>        <dbl>      <int>    <dbl>
#>  1         1          1        0
#>  2         1          2        0
#>  3         1          3        0
#>  4         1          4        1
#>  5         1          5        1
#>  6         1          6        0
#>  7         1          7        1
#>  8         1          8        1
#>  9         1          9        0
#> 10         1         10        0
#> # ℹ 44 more rows