Validate a list of question objects

Checks that all questions in a list are correctly structured for use in multiQuestions. Each question is validated via checkSingleQuestion. The list elements can be named (e.g. q1, q2) or unnamed — unnamed elements are automatically assigned names q1, q2, etc.

Usage

checkMultiQuestions(x)

Arguments

x

A list of question lists, each conforming to the structure described in checkSingleQuestion.

Value

The input x (with names assigned if needed) invisibly if all checks pass.

See also

multiQuestions which calls this function internally, checkSingleQuestion for validating individual questions.

Examples

questions <- list(
  q1 = list(
    question = "Which planet is closest to the Sun?",
    options  = c("Venus", "Mercury", "Mars"),
    answer   = 2L
  ),
  q2 = list(
    question = "Which are noble gases?",
    options  = c("Helium", "Oxygen", "Neon", "Iron"),
    answer   = c(1L, 3L)
  )
)
checkMultiQuestions(questions)