diff --git a/plugins/jspsych-single-stim.js b/plugins/jspsych-single-stim.js
deleted file mode 100644
index 0762ebba..00000000
--- a/plugins/jspsych-single-stim.js
+++ /dev/null
@@ -1,174 +0,0 @@
-/**
- * jspsych-single-stim
- * Josh de Leeuw
- *
- * plugin for displaying a stimulus and getting a keyboard response
- *
- * documentation: docs.jspsych.org
- *
- **/
-
-
-jsPsych.plugins["single-stim"] = (function() {
-
-  var plugin = {};
-
-  jsPsych.pluginAPI.registerPreload('single-stim', 'stimulus', 'image', function(t){ return !t.is_html || t.is_html == 'undefined'});
-
-  plugin.info = {
-    name: 'single-stim',
-    description: '',
-    parameters: {
-      stimulus: {
-        type: [jsPsych.plugins.parameterType.STRING],
-        default: undefined,
-        no_function: false,
-        description: ''
-      },
-      is_html: {
-        type: [jsPsych.plugins.parameterType.BOOL],
-        default: false,
-        no_function: false,
-        description: ''
-      },
-      choices: {
-        type: [jsPsych.plugins.parameterType.KEYCODE],
-        array: true,
-        default: jsPsych.ALL_KEYS,
-        no_function: false,
-        description: ''
-      },
-      prompt: {
-        type: [jsPsych.plugins.parameterType.STRING],
-        default: '',
-        no_function: false,
-        description: ''
-      },
-      timing_stim: {
-        type: [jsPsych.plugins.parameterType.INT],
-        default: -1,
-        no_function: false,
-        description: ''
-      },
-      timing_response: {
-        type: [jsPsych.plugins.parameterType.INT],
-        default: -1,
-        no_function: false,
-        description: ''
-      },
-      response_ends_trial: {
-        type: [jsPsych.plugins.parameterType.BOOL],
-        default: true,
-        no_function: false,
-        description: ''
-      },
-
-    }
-  }
-
-  plugin.trial = function(display_element, trial) {
-
-    // if any trial variables are functions
-    // this evaluates the function and replaces
-    // it with the output of the function
-    trial = jsPsych.pluginAPI.evaluateFunctionParameters(trial);
-
-    // set default values for the parameters
-    trial.choices = trial.choices || jsPsych.ALL_KEYS;
-    trial.response_ends_trial = (typeof trial.response_ends_trial == 'undefined') ? true : trial.response_ends_trial;
-    trial.timing_stim = trial.timing_stim || -1;
-    trial.timing_response = trial.timing_response || -1;
-    trial.is_html = (typeof trial.is_html == 'undefined') ? false : trial.is_html;
-    trial.prompt = trial.prompt || "";
-
-    var new_html = '';
-    // display stimulus
-    if (!trial.is_html) {
-      new_html = '<img src="'+trial.stimulus+'" id="jspsych-single-stim-stimulus"></img>';
-    } else {
-      new_html = '<div id="jspsych-single-stim-stimulus">'+trial.stimulus+'</div>';
-    }
-
-    // add prompt
-    new_html += trial.prompt;
-
-    // draw
-    display_element.innerHTML = new_html;
-
-    // store response
-    var response = {
-      rt: -1,
-      key: -1
-    };
-
-    // function to end trial when it is time
-    var end_trial = function() {
-
-      // kill any remaining setTimeout handlers
-      jsPsych.pluginAPI.clearAllTimeouts();
-
-      // kill keyboard listeners
-      if (typeof keyboardListener !== 'undefined') {
-        jsPsych.pluginAPI.cancelKeyboardResponse(keyboardListener);
-      }
-
-      // gather the data to store for the trial
-      var trial_data = {
-        "rt": response.rt,
-        "stimulus": trial.stimulus,
-        "key_press": response.key
-      };
-
-      // clear the display
-      display_element.innerHTML = '';
-
-      // move on to the next trial
-      jsPsych.finishTrial(trial_data);
-    };
-
-    // function to handle responses by the subject
-    var after_response = function(info) {
-
-      // after a valid response, the stimulus will have the CSS class 'responded'
-      // which can be used to provide visual feedback that a response was recorded
-      display_element.querySelector('#jspsych-single-stim-stimulus').className += ' responded';
-
-      // only record the first response
-      if (response.key == -1) {
-        response = info;
-      }
-
-      if (trial.response_ends_trial) {
-        end_trial();
-      }
-    };
-
-    // start the response listener
-    if (trial.choices != jsPsych.NO_KEYS) {
-      var keyboardListener = jsPsych.pluginAPI.getKeyboardResponse({
-        callback_function: after_response,
-        valid_responses: trial.choices,
-        rt_method: 'date',
-        persist: false,
-        allow_held_key: false
-      });
-    }
-
-    // hide stimulus if timing_stim is set
-    if (trial.timing_stim > 0) {
-      jsPsych.pluginAPI.setTimeout(function() {
-        display_element.querySelector('#jspsych-single-stim-stimulus').style.visibility = 'hidden';
-      }, trial.timing_stim);
-    }
-
-    // end trial if timing_response is set
-    if (trial.timing_response > 0) {
-      jsPsych.pluginAPI.setTimeout(function() {
-        end_trial();
-      }, trial.timing_response);
-    }
-
-  };
-
-  return plugin;
-})();