With the increased demand for evidence based mental health interventions, there has been an increased need for comprehensive ways to determine the validity of certain measures used to measure therapy effectiveness. The Behavior and Symptom Identification Scale (BASIS-32) is one of the most widely used measures for measuring therapy outcomes. This study was conducted on the BASIS-32 investigating the validity of the instrument, not only on the overall and subtest level, but also on the item level. This study is particular in that it also measured the validity of the instrument in being sensitive to client reported change over time. Results found the BASIS-32’s total score, subtest’s scores, and the majority of the items to have very meaningful and statistically significant sensitivity to measuring client change over time. Conclusions and further areas of development are discussed.
","abstract_html":"<p>With the increased demand for evidence based mental health interventions, there has been an increased need for comprehensive ways to determine the validity of certain measures used to measure therapy effectiveness. The Behavior and Symptom Identification Scale (BASIS-32) is one of the most widely used measures for measuring therapy outcomes. This study was conducted on the BASIS-32 investigating the validity of the instrument, not only on the overall and subtest level, but also on the item level. This study is particular in that it also measured the validity of the instrument in being sensitive to client reported change over time. Results found the BASIS-32’s total score, subtest’s scores, and the majority of the items to have very meaningful and statistically significant sensitivity to measuring client change over time. Conclusions and further areas of development are discussed.</p>","abstract_has_math":false,"creators":["Corbett, Christopher S."],"institution":null,"degree_name":"Doctor of Psychology (PsyD)","degree_level":"Doctoral Project","degree_discipline":"Clinical Psychology","degree_department":null,"school":null,"contributors":["David Vermeersch","Kendal Boyd","Matt Riggs"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2008,"date_issued":"2008-09-01T07:00:00Z","date_published":"2008-09-01T07:00:00Z","updated_at":"2026-07-24T02:54:10Z","subjects":["Applied Behavior Analysis","Clinical Psychology","Psychiatric Status Rating Scales -- dissertations; Mental Disorders -- therapy -- outlines; Behavioral Sciences -- methods; Factor Analysis, Statistical; Psychometrics -- instrumentation; Sickness Impact Profile; Mental Disorders -- classification -- diagnosis; Sensitivity and Specificity; Questionnaires; Outcome Assessment (Health Care) -- methods."],"languages":["English"],"rights":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsrepository.llu.edu/etd/1555","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["David Vermeersch","Kendal Boyd","Matt Riggs"]},{"key":"dc:creator","label":"Author","values":["Corbett, Christopher S."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Clinical Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctoral Project"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Psychology (PsyD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Applied Behavior Analysis","Clinical Psychology","Psychiatric Status Rating Scales -- dissertations; Mental Disorders -- therapy -- outlines; Behavioral Sciences -- methods; Factor Analysis, Statistical; Psychometrics -- instrumentation; Sickness Impact Profile; Mental Disorders -- classification -- diagnosis; Sensitivity and Specificity; Questionnaires; Outcome Assessment (Health Care) -- methods."]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsrepository.llu.edu/etd/1555"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["With the increased demand for evidence based mental health interventions, there has been an increased need for comprehensive ways to determine the validity of certain measures used to measure therapy effectiveness. The Behavior and Symptom Identification Scale (BASIS-32) is one of the most widely used measures for measuring therapy outcomes. This study was conducted on the BASIS-32 investigating the validity of the instrument, not only on the overall and subtest level, but also on the item level. This study is particular in that it also measured the validity of the instrument in being sensitive to client reported change over time. Results found the BASIS-32’s total score, subtest’s scores, and the majority of the items to have very meaningful and statistically significant sensitivity to measuring client change over time. Conclusions and further areas of development are discussed.
"]},{"key":"dc:title","label":"Title","values":["Sensitivity to Change of the Behavior and Symptom Identification Scale (BASIS-32)"]}]}],"canonical_facts":{"dc:contributor":["David Vermeersch","Kendal Boyd","Matt Riggs"],"dc:creator":["Corbett, Christopher S."],"dc:description.abstract":["With the increased demand for evidence based mental health interventions, there has been an increased need for comprehensive ways to determine the validity of certain measures used to measure therapy effectiveness. The Behavior and Symptom Identification Scale (BASIS-32) is one of the most widely used measures for measuring therapy outcomes. This study was conducted on the BASIS-32 investigating the validity of the instrument, not only on the overall and subtest level, but also on the item level. This study is particular in that it also measured the validity of the instrument in being sensitive to client reported change over time. Results found the BASIS-32’s total score, subtest’s scores, and the majority of the items to have very meaningful and statistically significant sensitivity to measuring client change over time. Conclusions and further areas of development are discussed.
"],"dc:identifier":["https://scholarsrepository.llu.edu/etd/1555"],"dc:language":["English"],"dc:rights":["This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights."],"dc:subject":["Applied Behavior Analysis","Clinical Psychology","Psychiatric Status Rating Scales -- dissertations; Mental Disorders -- therapy -- outlines; Behavioral Sciences -- methods; Factor Analysis, Statistical; Psychometrics -- instrumentation; Sickness Impact Profile; Mental Disorders -- classification -- diagnosis; Sensitivity and Specificity; Questionnaires; Outcome Assessment (Health Care) -- methods."],"dc:title":["Sensitivity to Change of the Behavior and Symptom Identification Scale (BASIS-32)"],"thesis:degree_discipline":["Clinical Psychology"],"thesis:degree_level":["Doctoral Project"],"thesis:degree_name":["Doctor of Psychology (PsyD)"]},"updated_at":"2026-07-24T02:54:10Z"}