xprmntr

The goal of xprmntr (pronounced: “experimenter”) is to let users build behavioural experiments in R run through the browser, by providing wrappers to the jspsych javascript library.

Installation

The development version can be installed from GitHub with:

# install.packages("devtools")
devtools::install_github("djnavarro/xprmntr")

Goals

The jsPsych library is organised around a system of plugins that generate specific trial types that can be used in a behavioural experiment. The initial goals in xprmtnr is:

• To provide “general purpose” wrappers that can be used to insert any jsPsych plugin (including any novel plugin)
• To provide a convenient API that wraps around the “standard” plugins that come bundled with jsPsych, and provides some structure for the user
• To allow the client side experiment (jsPsych) to communicate with an R server using the plumber package so the experiment can call server-side R functions
• To allow experiments to deploy locally, or github pages, etc.
• To provide mechanisms to save locally, or to dropbox or similar cloud storage

Notes

• The “survey” family:
  • jspsych-survey-html-form
  • jspsych-survey-likert
  • jspsych-survey-multi-choice
  • jspsych-survey-multi-select
  • jspsych-survey-text
• The “sr” family (stimulus-response):
  • jspsych-audio-button-response
  • jspsych-audio-keyboard-response
  • jspsych-audio-slider-response
  • jspsych-html-button-response
  • jspsych-html-keyboard-response
  • jspsych-html-slider-response
  • jspsych-image-button-response
  • jspsych-image-keyboard-response
  • jspsych-image-slider-response
  • jspsych-video-button-response
  • jspsych-video-keyboard-response
  • jspsych-video-slider-response
• The “categorise” family:
  • jspsych-categorize-animation
  • jspsych-categorize-html
  • jspsych-categorize-image
• Other… not sure yet
  • jspsych-animation
  • jspsych-cloze
  • jspsych-free-sort
  • jspsych-iat-html
  • jspsych-iat-image
  • jspsych-rdk
  • jspsych-reconstruction
  • jspsych-resize
  • jspsych-same-different-html
  • jspsych-same-different-image
  • jspsych-serial-reaction-time
  • jspsych-serial-reaction-time-mouse
  • jspsych-visual-search-circle
  • jspsych-vsl-animate-occlusion
  • jspsych-vsl-grid-scene
• “Meta???” family (not strictly “trials”)
  • jspsych-external-html
  • jspsych-call-function
  • jspsych-fullscreen
  • jspsych-instructions
  • possibly have wrappers for loop nodes & conditional nodes here??

Possible design:

• the “cue” family is used to specify the stimulus (broadly construed)
  • cue_html
  • cue_text
  • cue_image
  • cue_audio
  • cue_video
  • cue_animation
• the “response” family is used to specify a response mechanism
  • response_button
  • response_key
  • response_slider (continuous)
  • response_likert (ordinal)
  • response_select (radio or checkbox)
  • response_mouse (???)
  • response_text (free text??)p
• the “simple” family is a simple construction
• the “survey” family: the trial is built from multiple questions; a question is a combination of a display_text + response_likert + response_select …
• the “iat”, “same-diff”, “categorise” seem like they could be made to fit this framework easily