{"id":138,"date":"2019-03-10T00:58:39","date_gmt":"2019-03-10T07:58:39","guid":{"rendered":"https:\/\/blogs.ubc.ca\/vclcorrelation\/?page_id=138"},"modified":"2019-03-11T22:53:08","modified_gmt":"2019-03-12T05:53:08","slug":"replication-spec-distractor-color","status":"publish","type":"page","link":"https:\/\/blogs.ubc.ca\/vclcorrelation\/project-overview\/replication-spec-distractor-color\/","title":{"rendered":"Replication Spec: Distractor Scatterplot Color Axes"},"content":{"rendered":"

This is a replication of the JND Discrimination task from Elliott & Rensink (VSS 2018), with the extension of a Steven’s Estimation Task.<\/p>\n

Both tasks follow the basic methods from Rensink & Baldridge (2010). The discrimination task is set up as a design condition (i.e., only testing correlation values of .3, .6, .9). The only difference is the addition of 1.\u00a0colored square and diamond shaped data points<\/strong>, and 2. a distractor (irrelevant) population of data on each scatterplot<\/strong>. Just like the single population case, participants will either view two scatterplots side by side and judge which is showing a higher correlation (of target colored\/shaped points), or see three scatterplots and adjust the target plot to equal the mean of the two reference plots.<\/p>\n

Discrimination Task Specifications (highlighting differences in stimuli)<\/strong><\/p>\n

Two populations of data present in every plot: a target population, and a distractor population. Crucially, the distractor population will always be randomly generated and set to r = .3<\/strong><\/em>. The shape of the target and distractor populations can also vary between squares and 45 degree rotated squares, i.e., diamonds.<\/p>\n

E.g.,<\/p>\n

\"\"<\/p>\n

or<\/p>\n

\"\"<\/p>\n

The points and colors follow the same specifications as the visual search<\/a> and numerosity tasks:<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

The Estimation Task will follow the same rules. On all three scatterplots (target, highRef, and lowRef), there should be a second, irrelevant population of data set to r = .3.<\/p>\n

The hex-values for the colors can be found in\u00a0Experimental Color Space<\/a>.<\/p>\n

Example Excel Sheet Input can be found in:\u00a0Code_Params<\/a>.<\/p>\n

Example Data Output can be found in: MCCV_ColorXColor_Master<\/a>.<\/p>\n

The original Instructions for Running are also uploaded here.<\/a><\/p>\n

Old Java code for the JND task can be found in VCLCorrelation<\/a> on branch\u00a0yp-distractordiamond<\/a>.<\/p>\n

The same exact logic should be used to extend the Stevens Estimation task to show two populations of data (a target and an irrelevant set).<\/strong><\/p>\n

Example of subconditions:<\/p>\n

+2<\/p>\n

+1<\/p>\n

-1<\/p>\n

-2<\/p>\n

No Distractor<\/p>\n

All at .3, .6, .9<\/p>\n","protected":false},"excerpt":{"rendered":"

This is a replication of the JND Discrimination task from Elliott & Rensink (VSS 2018), with the extension of a Steven’s Estimation Task. Both tasks follow the basic methods from Rensink & Baldridge (2010). The discrimination task is set up as a design condition (i.e., only testing correlation values of .3, .6, .9). The only … Continue reading Replication Spec: Distractor Scatterplot Color Axes<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":58808,"featured_media":0,"parent":21,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-138","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/pages\/138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/users\/58808"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/comments?post=138"}],"version-history":[{"count":7,"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/pages\/138\/revisions"}],"predecessor-version":[{"id":163,"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/pages\/138\/revisions\/163"}],"up":[{"embeddable":true,"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/pages\/21"}],"wp:attachment":[{"href":"https:\/\/blogs.ubc.ca\/vclcorrelation\/wp-json\/wp\/v2\/media?parent=138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}