Choice matrix choicematrix

Choice matrix (choicematrix)

The choice matrix Question is referenced by its Question type in the code, which is choicematrix. This Question requires students to evaluate one or more row items using a set of column options.


  • is_math boolean

    Set to true to have LaTeX or MathML contents to be rendered with mathjax.

    Default: false

  • metadata object

    Object containing additional information about the question.

  • metadata.distractor_rationale string

    Used to display individual response feedback/rationale to the student.

  • metadata.rubric_reference string

    A unique identifier for the rubric to be used with the question - defaults to course rubric if assigned in activity

  • metadata.sample_answer string

    A sample answer to be displayed on the Learnosity Reports API. HTML is supported.

  • metadata.acknowledgements string

    References for any text passages, documents, images etc. used in the question.

  • metadata.distractor_rationale_response_level array

    Used to display individual response feedback/rationale to the student.

  • stimulus string

    The question stimulus. This can include text, tables, images, resources and LaTeX entered via the Math Editor.

  • stimulus_review string

    HTML/Text content displayed only in review state rendered above the response area. Supports embedded Feature <span> tags. Will override stimulus in review state.

  • instructor_stimulus string

    HTML/Text content displayed when showInstructorStimulus is set to true on the activity. Supports embedded Feature <span> tags.

  • type string

    Type of question being asked, e.g. 'association'

    Default: "choicematrix"

  • ui_style object

    Object used to control different aspects of the UI

  • ui_style.fontsize string

    Controls the size of base font for this question. Options are among 'small', 'normal', 'large', 'xlarge' and 'xxlarge'.

    Default: "normal"

  • ui_style.type string

    Default: "table"

  • ui_style.stem_width string

    The width of the stem column

  • ui_style.option_width string

    The width of each option column

  • ui_style.stem_title string

    The text appears above stem row

  • ui_style.option_row_title string

    The text appears above option row

  • ui_style.horizontal_lines boolean

    Whether horizontal lines should be shown underneath each stem

    Default: false

  • feedback_attempts number

    If instant_feedback is true, this field determines how many times the user can click on the 'Check Answer' button. 0 means unlimited.

    Default: 0

  • instant_feedback boolean

    Flag to determine whether to display a 'Check Answer' button to provide instant feedback to the user.

    Default: false

  • validation object

    In this section, configure the correct answer(s) for the question.

  • validation.allow_negative_scores boolean

    Negative scores will be normalised to zero by default. Allowing negative scores, on the other hand, means that the score can drop below zero when penalties are applied.

    Default: false

  • validation.penalty number

    Value indicating the marks deducted for an incorrect response.

    Default: 0

  • validation.min_score_if_attempted number

    Positive value indicating the minimum score if a student attempted the question.

    Default: 0

  • validation.scoring_type string

    The way in which marks are distributed for the question. Possible options:
    'exactMatch': Exact Match - All parts of the question must be answered correctly to receive a mark.
    'partialMatchV2': Partial Match - Each correct response element will be scored individually, and the overall question score will be divided between responses.
    'partialMatch': Partial Match per Response - Each correct response element will be awarded an individual score.

    Default: "exactMatch"

  • validation.unscored boolean

    When enabled, this option will remove all scoring from the question. This is useful for creating practice questions.

    Default: false

  • validation.valid_response object

    An object containing the valid response score and value.

  • validation.valid_response.score number

    Score awarded for the correct response(s).

    Default: 1

  • validation.valid_response.value array

    Default: []

  • validation.automarkable boolean

    Defines whether the question will be marked automatically, or must be marked manually.

    Default: true

  • validation.alt_responses array

    Add an alternate response if there is more than one correct overall solution to a question.

  • validation.alt_responses[ ].score number

    Score if the alternative response is correct.

    Default: 1

  • validation.alt_responses[ ].value array

    Default: []

  • validation.alt_responses[ ][ ].score number

    Score if the alternative response is correct.

    Default: 1

  • validation.alt_responses[ ][ ].value array

    Default: []

  • shuffle_options boolean

    Use this to shuffle Choice Matrix stems order.

    Default: false

  • options array

    Array of strings values presenting choice matrix options, for example, ['Yes', 'No'].

  • multiple_responses boolean

    If multiple_responses is true the user will be able to select multiple responses using a checkbox for each response.

    Default: false

  • stems array

    Array of strings value presenting each row of question stem.

Response format

The data returned in the response format for this Question is an array of integers, which represent the choices that the student made.

Response format examples

    "value": [
    "type": "array",
    "apiVersion": "v2.173.0",
    "revision": 1,
    "feedbackAttemptsCount": 2

Response attributes

  • value array

    Contains the choices that the student made.

  • type string

    Informs the scoring engine about what kind of data to expect in the values entered by the student. For this Question type, you must always supply a string for this attribute with the value "array".

  • apiVersion string

    The version of the Questions API that returned this reponse.

  • revision numeric

    Keeps track of the number of Question attempt submissions, i.e. how many times the student answered the Question and submitted it.

  • feedbackAttemptsCount numeric

    Keeps track of the number of feedback attempts.

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