Reverse-code responses

Flips a response scale so that a negatively worded item points the same way as the rest of its subscale: min + max - x.

Usage

reverse_code(x, min, max)

Arguments

x

Numeric responses.

min, max

The endpoints of the response scale the item was answered on – the possible range, not the observed one. Taking them from the data is the classic reverse-coding bug: if nobody picked 1, the flip is off by a point for every respondent.

Value

x, reverse-coded, with NA preserved.

Examples

reverse_code(c(1, 3, 5, NA), min = 1, max = 5)
#> [1]  5  3  1 NA