{"id":504,"date":"2017-12-14T20:02:27","date_gmt":"2017-12-15T01:02:27","guid":{"rendered":"https:\/\/carleton.ca\/cacr\/?page_id=504"},"modified":"2018-08-22T11:20:01","modified_gmt":"2018-08-22T15:20:01","slug":"sdt-app","status":"publish","type":"page","link":"https:\/\/carleton.ca\/cacr\/math-lab\/apps\/sdt-app\/","title":{"rendered":"Symbol Decision App"},"content":{"rendered":"<p>In the\u00a0<strong>Symbol Decision app<\/strong>, participants judge whether combinations of mathematical symbols are\u00a0\u201creadable\u201d, that is done they follow the conventions of mathematical text.\u00a0\u00a0The task begins with 3 word-based practice trials to ensure the participant understands what is meant by\u00a0\u201creadable\u201d.\u00a0\u00a0There are two versions of the task; the standard version\u00a0(Headley, 2016) and the\u00a0children version which\u00a0is designed for children in grades 2 through 4. In each version, the participant first observes a focal point (*) at the center of the screen (500ms) followed by the mathematical symbol stimulus (1500ms adult version; 3000ms child version).\u00a0\u00a0Participants are instructed to quickly press the green check mark if the stimulus is \u201creadable\u201d or press the red X if the stimulus is \u201cnon-readable\u201d.<\/p>\n<p>Experimental stimuli can be configured. Please <a href=\"https:\/\/gitlab.com\/RichardDing\/SDT-Trials\/-\/archive\/master\/SDT-Trials-master.zip\" target=\"_blank\" rel=\"noopener\">download<\/a> this sample trial list folder and follow the README file to configure the stimuli.<\/p>\n<p><\/p>\n<p>Headley, M. G. (2016).\u00a0<em>What is symbolic mathematics language literacy? A<strong>\u00a0<\/strong>multilevel\u00a0mixed methods study of adolescents in a middle school\u00a0<\/em>(Order No. 10308492). Available from ProQuest Dissertations &amp; Theses A&amp;I. (1865328066). Retrieved from\u00a0<u>https:\/\/search.proquest.com\/docview\/1865328066?accountid=10457<\/u><\/p>\n<p><\/p>\n<p>Click <a href=\"https:\/\/itunes.apple.com\/ca\/app\/symbol-decision\/id1324393419?l=zh&amp;ls=1&amp;mt=8\" target=\"_blank\" rel=\"noopener\">HERE<\/a> to download the app<\/p>\n<p><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-514 aligncenter\" src=\"https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-240x180.png\" alt=\"\" width=\"415\" height=\"311\" srcset=\"https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-240x180.png 240w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-160x120.png 160w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-768x576.png 768w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-400x300.png 400w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-800x600.png 800w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1-360x270.png 360w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-1.png 1024w\" sizes=\"(max-width: 415px) 100vw, 415px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-515 aligncenter\" src=\"https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-240x180.png\" alt=\"\" width=\"415\" height=\"311\" srcset=\"https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-240x180.png 240w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-160x120.png 160w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-768x576.png 768w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-400x300.png 400w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-800x600.png 800w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2-360x270.png 360w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-2.png 1024w\" sizes=\"(max-width: 415px) 100vw, 415px\" \/><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-516 aligncenter\" src=\"https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-240x180.png\" alt=\"\" width=\"414\" height=\"311\" srcset=\"https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-240x180.png 240w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-160x120.png 160w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-768x576.png 768w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-400x300.png 400w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-800x600.png 800w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3-360x270.png 360w, https:\/\/carleton.ca\/cacr\/wp-content\/uploads\/SDT-3.png 1024w\" sizes=\"(max-width: 414px) 100vw, 414px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the\u00a0Symbol Decision app, participants judge whether combinations of mathematical symbols are\u00a0\u201creadable\u201d, that is done they follow the conventions of mathematical text.\u00a0\u00a0The task begins with 3 word-based practice trials to ensure the participant understands what is meant by\u00a0\u201creadable\u201d.\u00a0\u00a0There are two versions of the task; the standard version\u00a0(Headley, 2016) and the\u00a0children version which\u00a0is designed for children [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":445,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_mi_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - 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