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EDITING: ratio_calculator.js

/*
 * Copyright (C) 2021 - present Instructure, Inc.
 *
 * This file is part of Canvas.
 *
 * Canvas is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, version 3 of the License.
 *
 * Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */

const MULTIPLE_ANSWERS = 'multiple_answers_question'

export default function calculateResponseRatio(answerPool, participantCount, suppl) {
  let questionType, correctResponseCount

participantCount = parseInt(participantCount || 0, 10)

if (participantCount <= 0) {
    return 0
  }

if (suppl) {
    questionType = suppl.questionType
  }

// Multiple-Answer question stats already come served with a "correct"
  // field that denotes the count of students who provided a fully correct
  // answer, so we don't have to calculate anything for it.
  if (MULTIPLE_ANSWERS === questionType) {
    correctResponseCount = suppl.correctResponseCount || 0
  } else {
    correctResponseCount = answerPool.reduce(function (sum, answer) {
      return answer.correct ? sum + answer.responses : sum
    }, 0)
  }

return parseFloat(correctResponseCount) / participantCount
}

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📁 __tests__/	DIR	—	2023-09-24 03:36
📄 quiz_report.js	JS	1.6 KB	2023-09-24 03:39	EDIT
📄 quiz_report_descriptor.js	JS	3.1 KB	2023-09-24 03:36	EDIT
📄 quiz_statistics.js	JS	4.5 KB	2023-09-24 03:36	EDIT
📄 ratio_calculator.js	JS	1.5 KB	2023-09-24 03:36	EDIT