Showing Sum of Money Either Gained or Lost

[mshastry2022]

Hello Everyone!

For my code, I will be having people choose numbers on a number line and the numbers are associated with some monetary value. So far in my code, I have made it such that when someone enters a number, they will receive a response letting them know how much money they gained or lost.

I was wondering if there was a way to have a sum/ net total of all the money the person either gained or lost at the end of the task? The person will go through ten trials of choosing a number, and after the ten trials, I would like to show them how much they either gained or lost.

My code is below. Thank you in advance! Any help is greatly appreciated :)

• Madhulika

var survey = {
  type: "survey-text",
  questions: [{ prompt: "Enter a number:", columns: 3, name: "Number" }],
  data: { task: "guess-number" }
};
var feedback = {
  type: "html-keyboard-response",
  stimulus: function() {
    var guess = JSON.parse(
      jsPsych.data
        .get()
        .filter({ task: "guess-number" })
        .last(1)
        .values()[0].responses
    ).Number;
    if (0 <= guess && guess <= 49) {
      return "<p>Gain one cent (+ 1¢)</p>";
    } else if (71 <= guess && guess <= 100) {
      return "<p>Gain one cent (+ 1¢)</p>";
    } else if (guess == 50 || guess == 70) {
      return "<p>Lose ten cents (- 10¢)</p>";
    } else if (guess == 55 || guess == 65) {
      return "<p>Gain no money (+ 0¢)</p>";
    } else if (guess == 60) {
      return "<p>Gain one dollar (+ 1$)</p><p>Congratulations! You found the winning number!</p><p>(Please enter '60' for the remaining trials)</p>";
    } else {
      //guess <= 0 || guess >= 100
      return "<p>Invalid number.</p><p>Remember, please enter in a number between 0 and 100 for the remaining trials!</p>";
    }
  },
  choices: jsPsych.NO_KEYS,
  trial_duration: 3000
};

var actual_procedure = {
  timeline: [fixation, numberline, survey, feedback],
  repetitions: 10
};
timeline.push(actual_procedure);

jsPsych.init({
  timeline: timeline
});

[vijaymarupudi]

You can have a variable outside the experiment that keeps track of the totals.

var survey = {
  type: "survey-text",
  questions: [{ prompt: "Enter a number:", columns: 3, name: "Number" }],
  data: { task: "guess-number" }
};

var TOTAL = 0;

var feedback = {
  type: "html-keyboard-response",
  stimulus: function() {
    var guess = JSON.parse(
      jsPsych.data
        .get()
        .filter({ task: "guess-number" })
        .last(1)
        .values()[0].responses
    ).Number;
    if (0 <= guess && guess <= 49) {
      TOTAL += 1;
      return "<p>Gain one cent (+ 1¢)</p>";
    } else if (71 <= guess && guess <= 100) {
      TOTAL += 1;
      return "<p>Gain one cent (+ 1¢)</p>";
    } else if (guess == 50 || guess == 70) {
      TOTAL -= 10;
      return "<p>Lose ten cents (- 10¢)</p>";
    } else if (guess == 55 || guess == 65) {
      return "<p>Gain no money (+ 0¢)</p>";
    } else if (guess == 60) {
      TOTAL += 100;
      return "<p>Gain one dollar (+ 1$)</p><p>Congratulations! You found the winning number!</p><p>(Please enter '60' for the remaining trials)</p>";
    } else {
      //guess <= 0 || guess >= 100
      return "<p>Invalid number.</p><p>Remember, please enter in a number between 0 and 100 for the remaining trials!</p>";
    }
  },
  choices: jsPsych.NO_KEYS,
  trial_duration: 3000
};

var actual_procedure = {
  timeline: [fixation, numberline, survey, feedback],
  repetitions: 10
};

var display_total = {
  type: "html-keyboard-response",
  stimulus: function() {
    return (TOTAL / 100).toString() + " is what you have gained.";
  }
};

timeline.push(actual_procedure, display_total);

jsPsych.init({
  timeline: timeline
});