{"id":145,"date":"2025-02-07T09:30:40","date_gmt":"2025-02-07T17:30:40","guid":{"rendered":"https:\/\/labs.wsu.edu\/lsd\/?page_id=145"},"modified":"2025-04-18T22:54:07","modified_gmt":"2025-04-19T05:54:07","slug":"what-we-do","status":"publish","type":"page","link":"https:\/\/labs.wsu.edu\/lsd\/what-we-do\/","title":{"rendered":"What we do"},"content":{"rendered":"<br \/>\n<section id=\"builder-section-1738949022588\" class=\"row single gutter pad-top\">\n<div style=\"\" class=\"column one \">\n<h2><span style=\"color: #800000\">Quantitative data analysis &amp; statistics<\/span><\/h2>\n<h4>Example projects\/grants\/contracts:<\/h4>\n<ul>\n<li>2023-2024, <strong>Statistician<\/strong>, <em>Creating adaptive, wearable technologies to assess and intervene for individuals with ADRDs.<\/em> PI: Schmitter-Edgecombe, M. National Institute on Aging (#R35 AG071451), 2021-2026, Amount: $4,590,000.<\/li>\n<li>2023-2024, <strong>Statistician<\/strong>, <em>Multi-modal assessment and intervention for functional independence<\/em>. PI: Schmitter-Edgecombe, M. National Institute on Aging (#R01 AG065218), 2020-2025, Amount: $2,992,391.<\/li>\n<li>2022, <strong>Statistician<\/strong>, <em>Clinician-in-the-loop smart technology to support health monitoring and intervention for chronic conditions<\/em>. PIs: Cook\/Fritz\/Schmitter-Edgecombe. NIH: National Institute of Nursing Research (#R01 NINR016732), 2017-2022, Amount: $1,826,091.<\/li>\n<\/ul>\n<h4>Example products:<\/h4>\n<ul>\n<li>Kangas, S., <strong>Dai, S.,<\/strong> &amp; Ardasheva, Y. (2024). The Intersection of language and disability: Progress of English learners with disabilities on NAEP reading. <em>The Journal of Special Education, 58<\/em>(2), 88-99. <a href=\"https:\/\/doi.org\/10.1177\/00224669231213054\">https:\/\/doi.org\/10.1177\/00224669231213054<\/a><em>.\u00a0<\/em><\/li>\n<li><strong>Dai, S.,<\/strong> Hao, T., Ardasheva, Y., Ramazan, O., Danielson, R., &amp; Austin, B. (2023). PISA reading achievement: Identifying predictors and examining model generalizability for multilingual students.<em> Reading and Writing. 36<\/em>, 2763-2795.<a href=\"https:\/\/doi.org\/10.1007\/s11145-022-10357-4\">https:\/\/doi.org\/10.1007\/s11145-022-10357-4.\u00a0<\/a><\/li>\n<li>Schmitter-Edgecombe, M., Luna, C., Beech, B.,\u00a0<strong>Dai, S.<\/strong>, &amp; Cook, D. (2024). Capturing cognitive capacity in the everyday environment across a continuum of cognitive decline using a smartwatch n-back task and ecological momentary assessment. <em>Neuropsychology<\/em>. Advanced online publication. <a href=\"https:\/\/psycnet.apa.org\/doi\/10.1037\/neu0000984\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1037\/neu0000984<\/a><\/li>\n<li><strong>Dai, S.,<\/strong> Kehinde, O.J., Schmitter-Edgecombe, M., &amp; French, B. (2022). Modeling daily fluctuations in everyday cognition and health behaviors at general and person-specific levels: A GIMME analysis. <em>Behaviormetrika. 50<\/em>, 563\u2013583. <em><a href=\"https:\/\/doi.org\/10.1007\/s41237-022-00191-x\">https:\/\/doi.org\/10.1007\/s41237-022-00191-x<\/a>.\u00a0<\/em><\/li>\n<\/ul>\n<hr \/>\n<h2><span style=\"color: #800000\">Psychometrics and measurement<\/span><\/h2>\n<h4>Example projects\/grants\/contracts:<\/h4>\n<ul>\n<li>2021-2022, <strong>Psychometrician<\/strong> <strong>and<\/strong> <strong>Statistician<\/strong>, <em>Data analysis for the motivated strategies for learning questionnaire (MSLQ) project<\/em>. (With A. Adesope). WSU Pharmacy and Pharmaceutical Sciences. Amount: $18,288.<\/li>\n<\/ul>\n<h4>Example products:<\/h4>\n<ul>\n<li>Svetina Valdivia, D. &amp; <strong>Dai, S.<\/strong> (2023). Number of response categories and sample size requirements in polytomous IRT models. <em>Journal of Experimental Education<\/em>. <em>92 <\/em>(1), 154-185. <a href=\"https:\/\/doi.org\/10.1080\/00220973.2022.2153783\">https:\/\/doi.org\/10.1080\/00220973.2022.2153783<\/a><\/li>\n<li><strong>Dai, S.,<\/strong> Vo, T., Kehinde, O.J., He, H., Xue, Y., Demir, C., &amp; Wang, X. (2021). Performance of polytomous IRT models with rating scale data: An investigation over sample size, instrument length, and missing data. <em>Frontiers in Education &#8211; Assessment, Testing and Applied Measurement. 6, <\/em>721963. <a href=\"https:\/\/www.frontiersin.org\/articles\/10.3389\/feduc.2021.721963\">https:\/\/www.frontiersin.org\/articles\/10.3389\/feduc.2021.721963<\/a><\/li>\n<li><strong>Dai, S.<\/strong> (2021). Handling missing responses in psychometrics: Methods and software. <em>Psych, 3, <\/em>673-693. <a href=\"https:\/\/www.mdpi.com\/2624-8611\/3\/4\/43\">https:\/\/doi.org\/10.3390\/psych3040043<\/a><\/li>\n<\/ul>\n<hr \/>\n<h2><span style=\"color: #800000\">Instrument development &amp; validation<\/span><\/h2>\n<h4>Example projects\/grants\/contracts:<\/h4>\n<ul>\n<li>2019-2020, <strong>Psychometrician<\/strong>, <em>Psychometric analysis for the IT-related self-efficacy measure.<\/em> WSU Carson College of Business. (With D. Compeau). Amount: $6,000.<\/li>\n<\/ul>\n<h4>Example products:<\/h4>\n<ul>\n<li>Danielson, R.W., Gale, M.S., <strong>Dai, S.<\/strong>, Seyranian, V., Heddy, B., Marsh, J., &amp; Polikoff, M.S. (2023). The development and validation of the elementary activity interest measure. <em>Journal of Experimental Education<\/em>. Advanced online publication. <a href=\"https:\/\/doi.org\/10.1080\/00220973.2023.2276933\">https:\/\/doi.org\/10.1080\/00220973.2023.2276933<\/a><\/li>\n<li>Schmitter-Edgecombe, M., Rahman, S., <strong>Dai, S.<\/strong>, Woo, E., &amp; Libon, D. (2025). Cutoffs of the instrumental activities of daily living &#8211; compensation (IADL-C) scale for identification of functional limitations consistent with mild cognitive impairment and dementia. <em>Archives of Clinical Neuropsychology, <\/em>Advanced online publication. <a href=\"https:\/\/doi.org\/10.1093\/arclin\/acaf028\">https:\/\/doi.org\/10.1093\/arclin\/acaf028<\/a>.<\/li>\n<\/ul>\n<hr \/>\n<h2><span style=\"color: #800000\">Program evaluation<\/span><\/h2>\n<h4>Example projects\/grants\/contracts:<\/h4>\n<ul>\n<li>2025-2029, <strong>Co-Principal Investigator &amp; Program Evaluator<\/strong>, <em>Certifying and Advancing Multilingual Teachers by Increasing Numbers Through Three Grow-Your-Own Strands (CAMINOS)<\/em>. PI: Y. Ardasheva. Department of Education &#8211; National Professional Development (NPD) Grant. Amount: $3,067,509.<\/li>\n<li>2016-2017, <strong>Program Evaluator<\/strong>,\u00a0<em>The Indiana Maternal, Infant, Early Childhood Home Visiting Program Evaluation Project; The Indiana Project of Linking Actions for Unmet Needs in Children\u2019s Health project; <\/em>and <em>the Project of Optimizing School Health and Learning Coordination.<\/em><\/li>\n<\/ul>\n<h4>Example products:<\/h4>\n<ul>\n<li>Howland, A., Wu, P-J., &amp; <strong>Dai, S<\/strong> (2016).\u00a0<em>The Indiana Maternal, Infant, Early Childhood Home Visiting Program (IN-MIECHV)<\/em>\u00a0<em>Quarterly Benchmark Reports for FY15<\/em>. Report discussions presented to the Indiana State Department of Health, Indiana Department of Child Services, Healthy Families Indiana, and Indiana Nurse-Family Partnership, Indianapolis, IN.<\/li>\n<\/ul>\n<hr \/>\n<h2><span style=\"color: #800000\">Software (R package) development<\/span><\/h2>\n<h4>Example products:<\/h4>\n<ul>\n<li><strong>Dai, S.<\/strong>, Kehinde, O.J., French, B.F., Schmitter-Edgecombe, M. (2020). ROCpsych: Compute and compare diagnostic test statistics across groups. (R package version 1.3) [Computer software]. <a href=\"https:\/\/CRAN.R-project.org\/package=ROCpsych\">https:\/\/CRAN.R-project.org\/package=ROCpsych<\/a>.<\/li>\n<li><strong>Dai, S.<\/strong>, French, B.F., Finch, W. H. (2020). DIFplus: Multilevel Mantel-Haenszel statistics for differential item functioning detection. (R package version 1.1) [Computer software].<br \/>\n<a href=\"https:\/\/cran.r-project.org\/package=DIFplus\">https:\/\/cran.r-project.org\/package=DIFplus<\/a>.<\/li>\n<li><strong>Dai, S.,<\/strong> Wang, X., &amp; Svetina, D. (2022). subscore: Subscore computing functions in classical test theory. (R package version 3.3) [Computer software]. <a href=\"http:\/\/CRAN.R-project.org\/package=subscore\">http:\/\/CRAN.R-project.org\/package=subscore<\/a>.<\/li>\n<li><strong>Dai, S.,<\/strong> Wang, X., &amp; Svetina, D. (2021). TestDataImputation: Missing item responses imputation for test and assessment data. (R package version 2.2) [Computer software]. <a href=\"http:\/\/CRAN.R-project.org\/package=TestDataImputation\">http:\/\/CRAN.R-project.org\/package=TestDataImputation<\/a>.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-254 aligncenter\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-labs\/uploads\/sites\/2619\/2025\/03\/Slide8-396x169.jpg\" alt=\"\" width=\"396\" height=\"169\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-labs\/uploads\/sites\/2619\/2025\/03\/Slide8-396x169.jpg 396w, https:\/\/wpcdn.web.wsu.edu\/wp-labs\/uploads\/sites\/2619\/2025\/03\/Slide8.jpg 640w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/p>\n<\/p><\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p> <\/p>\n<h2>Quantitative data analysis &amp; statistics<\/h2>\n<h4>Example projects\/grants\/contracts:<\/h4>\n<p>2023-2024, <strong>Statistician<\/strong>, <em>Creating adaptive, wearable technologies to assess and intervene for individuals with ADRDs.<\/em> PI: Schmitter-Edgecombe, M. National Institute on Aging (#R35 AG071451), 2021-2026, Amount: $4,590,000.<br \/> 2023-2024, <strong>Statistician<\/strong>, <em>Multi-modal assessment and intervention for functional independence<\/em>. PI: Schmitter-Edgecombe, M. National Institute on Aging (#R01 AG065218), 2020-2025, Amount: $2,992,391.<br \/> 2022, <strong>Statistician<\/strong>, <em>Clinician-in-the-loop smart technology to support health monitoring and intervention for chronic conditions<\/em>. PIs: Cook\/Fritz\/Schmitter-Edgecombe. NIH: National Institute of Nursing Research (#R01 NINR016732), 2017-2022, Amount: $1,826,091.<\/p>\n<h4>Example products:<\/h4>\n<p>Kangas, S., <strong>Dai, S.,<\/strong> &amp; Ardasheva, Y. (2024). The Intersection of language and disability: Progress of English learners &#8230; <a href=\"https:\/\/labs.wsu.edu\/lsd\/what-we-do\/\" class=\"more-link\"><span class=\"more-default\">&raquo; More &#8230;<\/span><\/a><\/p>\n","protected":false},"author":4782,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-builder.php","meta":[],"wsuwp_university_location":[],"wsuwp_university_org":[],"_links":{"self":[{"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/pages\/145"}],"collection":[{"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/users\/4782"}],"replies":[{"embeddable":true,"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/comments?post=145"}],"version-history":[{"count":8,"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/pages\/145\/revisions"}],"predecessor-version":[{"id":321,"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/pages\/145\/revisions\/321"}],"wp:attachment":[{"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/media?parent=145"}],"wp:term":[{"taxonomy":"wsuwp_university_location","embeddable":true,"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/wsuwp_university_location?post=145"},{"taxonomy":"wsuwp_university_org","embeddable":true,"href":"https:\/\/labs.wsu.edu\/lsd\/wp-json\/wp\/v2\/wsuwp_university_org?post=145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}