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jspsych-call-function
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jspsych-cloze
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jspsych-fullscreen
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jspsych-html-button-response
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jspsych-html-keyboard-response
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jspsych-html-slider-response
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jspsych-iat-html
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jspsych-iat-image
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jspsych-image-button-response
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jspsych-image-keyboard-response
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jspsych-image-slider-response
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jspsych-instructions
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jspsych-rdk
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jspsych-reconstruction
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jspsych-resize
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<a href="#parameters" title="Parameters" class="md-nav__link">
Parameters
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Examples
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jspsych-same-different-html
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jspsych-same-different-image
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jspsych-serial-reaction-time
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jspsych-serial-reaction-time-mouse
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jspsych-survey-html-form
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<a href="../jspsych-survey-likert/" title="jspsych-survey-likert" class="md-nav__link">
jspsych-survey-likert
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jspsych-survey-multi-choice
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jspsych-survey-multi-select
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jspsych-survey-text
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jspsych-video-button-response
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jspsych-video-keyboard-response
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jspsych-video-slider-response
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jspsych-visual-search-circle
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jspsych-vsl-animate-occlusion
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<a href="#parameters" title="Parameters" class="md-nav__link">
Parameters
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<a href="#measuring-a-credit-card-and-resizing-the-display-to-have-150-pixels-equal-an-inch" title="Measuring a credit card and resizing the display to have 150 pixels equal an inch." class="md-nav__link">
Measuring a credit card and resizing the display to have 150 pixels equal an inch.
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<a href="https://github.com/jspsych/jsPsych/edit/master/docs/plugins/jspsych-resize.md" title="Edit this page" class="md-icon md-content__icon">&#xE3C9;</a>
<h1 id="jspsych-resize">jspsych-resize<a class="headerlink" href="#jspsych-resize" title="Permanent link">&para;</a></h1>
<p>This plugin displays a resizable div container that allows the user to drag until the container is the same size as the item being measured. Once the user measures the item as close as possible, clicking the button sets a scaling factor for the div containing jsPsych content. This causes the stimuli that follow to have a known size, independent of monitor resolution.</p>
<h2 id="parameters">Parameters<a class="headerlink" href="#parameters" title="Permanent link">&para;</a></h2>
<p>Parameters with a default value of <em>undefined</em> must be specified. Other parameters can be left unspecified if the default value is acceptable.</p>
<table>
<thead>
<tr>
<th>Parameter</th>
<th>Type</th>
<th>Default Value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>item_height</td>
<td>numeric</td>
<td>1</td>
<td>The height of the item to be measured. Any units can be used as long as you are consistent with using the same units for all parameters.</td>
</tr>
<tr>
<td>item_width</td>
<td>numeric</td>
<td>1</td>
<td>The width of the item to be measured.</td>
</tr>
<tr>
<td>pixels_per_unit</td>
<td>numeric</td>
<td>100</td>
<td>After the scaling factor is applied, this many pixels will equal one unit of measurement.</td>
</tr>
<tr>
<td>prompt</td>
<td>string</td>
<td><code>''</code></td>
<td>HTML content to display below the resizable box, and above the button.</td>
</tr>
<tr>
<td>button_label</td>
<td>string</td>
<td>'Continue'</td>
<td>Label to display on the button to complete calibration.</td>
</tr>
<tr>
<td>starting_size</td>
<td>numeric</td>
<td>100</td>
<td>The initial size of the box, in pixels, along the largest dimension. The aspect ratio will be set automatically to match the item width and height.</td>
</tr>
</tbody>
</table>
<h2 id="examples">Examples<a class="headerlink" href="#examples" title="Permanent link">&para;</a></h2>
<h4 id="measuring-a-credit-card-and-resizing-the-display-to-have-150-pixels-equal-an-inch">Measuring a credit card and resizing the display to have 150 pixels equal an inch.<a class="headerlink" href="#measuring-a-credit-card-and-resizing-the-display-to-have-150-pixels-equal-an-inch" title="Permanent link">&para;</a></h4>
<div class="codehilite"><pre><span></span><span class="kd">var</span> <span class="nx">inputs</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">type</span><span class="o">:</span> <span class="s1">&#39;resize&#39;</span><span class="p">,</span>
<span class="nx">item_width</span><span class="o">:</span> <span class="mi">3</span> <span class="o">+</span> <span class="mi">3</span><span class="o">/</span><span class="mi">8</span><span class="p">,</span>
<span class="nx">item_height</span><span class="o">:</span> <span class="mi">2</span> <span class="o">+</span> <span class="mi">1</span><span class="o">/</span><span class="mi">8</span><span class="p">,</span>
<span class="nx">prompt</span><span class="o">:</span> <span class="s2">&quot;&lt;p&gt;Click and drag the lower right corner of the box until the box is the same size as a credit card held up to the screen.&lt;/p&gt;&quot;</span><span class="p">,</span>
<span class="nx">pixels_per_unit</span><span class="o">:</span> <span class="mi">150</span>
<span class="p">};</span>
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