survey text data.

[rbruno1]

Hi, I am trying to add a "correct_response" function to the data section of my trials. Here is what I've got:

const POD_1_response = {
  type: 'survey-text',
  questions: [
    {prompt: "What word was she about to say? (no caps!)"}
  ],
  post_trial_gap: 500,
  data: {condition: 'Bucket', correct_response: "bucket"},
  on_finish: function(data) {
    data.correct = jsPsych.pluginAPI.compareKeys(data.response, data.correct_response);
  }
}

and here is what the data display shows:

  "rt": 4356,
  "response": {
    "Q0": "bucket"
  },
  "condition": "Bucket",
  "correct_response": "bucket",
  "trial_type": "survey-text",
  "trial_index": 5,
  "time_elapsed": 16094,
  "internal_node_id": "0.0-4.0-1.0"

How do i got the correct_response function to recognize the survey-text responses?

[becky-gilbert]

Hi @rbruno1, there are two issues here. First, the compareKeys function is just meant for checking whether two keyboard key presses are the same, so I wouldn't use that function to compare two text responses. Second, to access the participant's response in the on_finish function, you'll need to use data.response.Q0, because data.response is an object that contains key/value pairs for each question, and you're trying to access the response to the first (only) question, which is automatically called "Q0".

So try this in your trial's on_finish function:

data.correct = data.response.Q0 == data.correct_response;

And here's another tip: JavaScript has the toLowerCase function for converting strings to lowercase, so you could use that just in case someone isn't following your instructions, or doesn't notice that they've turned caps lock on.

data.correct = data.response.Q0.toLowerCase() == data.correct_response;

And there are some other fancy things you could do with JavaScript, like remove spaces using trim and replace to remove non-letter characters 😃

I hope this helps.