Test Zero

Author

Jessica Helmer

Published

April 2, 2026

Practice test for new FPT versions. Currently two time series items (preceeded by two practice items) that are linear, negative, 30 datapoints, but either low or high noise. Then, four denominator neglect items (preceeded by four practice items) that are combined (version B), have small lottery gold proportions of .02 and .03, and a proportion difference of .08.

Relevant references:

Nik’s FPT Battery Github

jsPsych Docs

Full FPT Demo

HTML code

<!DOCTYPE html>
<html lang="en">
    <head>
        <title>My Experiment</title>
        <script src="https://unpkg.com/fpt-battery@latest"></script>
        <link rel="stylesheet" href="https://unpkg.com/fpt-battery@latest/dist/fpt-battery.css" />
    </head>
    <body></body>
    <script>
        const config = {
            tasks: 
            [
              { 
                task_name: 'time_series',
                custom_task_settings: 
                {
                          FUNCTIONS: ['linear'],
                          DIRECTIONS: ['negative'],
                          datapoints: ['datapoints_30'],
                          test_trials_n: 2,
                          test_trials_per_block: 2,
                          test_blocks: 1,
                          pt_trials_n: 2,
                          pt_trials_per_block: 2,
                          pt_blocks: 1,
                          }
              },
              
              { 
                      task_name: 'denominator_neglect', 
                      custom_task_settings: 
                      {
                          task_version: 'B',
                          small_lottery_gold_coin_props: [0.2, 0.3],
                          large_lottery_gold_coin_prop_range_diff: [0.08],
                          pt_trials_n: 4,
                          pt_trials_per_block: 4,
                          pt_blocks: 1,
                          test_trials_n: 4,
                          test_trials_per_block: 4,
                          test_blocks: 1,
                          }
                      }
              ]
        };
        const fpt_battery = initFPTBattery(config);
        fpt_battery.run();
    </script>
</html>