jspsych-survey-text plugin

The survey-text plugin displays a set of questions with free response text fields. The subject types in answers.

Parameters

This table lists the parameters associated with this plugin. Parameters with a default value of undefined must be specified. Other parameters can be left unspecified if the default value is acceptable.

Parameter Type Default Value Description
questions array undefined An array of strings. The strings are the prompts for the subject to respond to. Each string gets its own response field.
preamble string empty string HTML formatted string to display at the top of the page above all the questions.
rows array 1 The number of rows for the response text box. Array length must match questions array, with a numeric value for each entry indicating the number of rows for that question's box.
columns array 40 The number of columns for the response text box. Array length must match questions array, with a numeric value for each entry indicating the number of columns for that question's box.

Data Generated

In addition to the default data collected by all plugins, this plugin collects the following data for each trial.

Name Type Value
responses JSON string A string in JSON format containing the responses for each question. The encoded object will have a separate variable for the response to each question, with the first question in the trial being recorded in Q0, the second in Q1, and so on. Each response is a string containing whatever the subject typed into the associated text box.
rt numeric The response time in milliseconds for the subject to make a response.

Examples

Basic example

// defining groups of questions that will go together.
var survey_trial = {
  type: 'survey-text',
  questions: ["How old are you?", "Where were you born?"],
};

Custom number of rows and columns

var survey_trial = {
  type: 'survey-text',
  questions: ["How old are you?", "Where were you born?"],
  rows: [5,3],
  columns: [40,50]
};