Class "TextGap"

Class TextGap is responsible for creating instances of input fields with text type of answers in question Entry type assessment tasks according to the QTI 2.1 standard.

Slots

response_identifier

A character value representing an identifier for the answer. By default, it is generated as 'id_gap_dddd', where dddd represents random digits.

points

A numeric value, optional, representing the number of points for this gap. Default is 1.

incorrect

Score for an incorrect nonempty response, in points. Default 0. Numeric/text gaps allow a finite non-positive score; omitted or whitespace-only text responses receive zero.

placeholder

A character value, optional, used to place helpful text in the text input field in the content delivery engine.

expected_length

A numeric value, optional, used to set the size of the text input field in the content delivery engine.

solution

A character vector containing the values considered as correct answers.

case_sensitive

A boolean value, determining whether the evaluation of the correct answer is case sensitive. Default is FALSE.

See also

Entry, NumericGap, TextGapOpal and InlineChoice.

Examples

tg <- new("TextGap",
          response_identifier = "id_gap_1234",
          points = 2,
          placeholder = "do not put special characters",
          expected_length = 20,
          solution = c("answer", "answerr", "aanswer"),
          case_sensitive = FALSE)