A study was designed in order to assess the effectiveness of a positive self-modeling strategy in increasing the performance of four University of the Pacific baseball players. A multiple baseline design across participants was used as a means of assessing the effectiveness of the self-modeling technique. Participants viewed edited positive self-modeling videotapes of their own batting performance. Measures were taken on: (a) the number of line drive hits; (b) ground ball hits; (c) the number of times the participant hit a ground ball, but was thrown out; (d) the number of times the participant hit a line drive, but it was caught; (e) swings and misses; (f) not swinging at a strike (called strikes); (g) not swinging at a ball (called balls); (h) the number of foul balls; and (i) the number of pop ups. In addition, batting averages were kept for game performance. It was expected that participants would show an increase in hits, a decrease in hit outs, a decrease in called strikes, an increase in called balls, a decrease in foul balls, and an increase in batting average when each participant began the positive self-modeling. The performance of those participants not yet viewing their positive self-modeling tape was not expected to show such improvement. Improvement was observed in three out of the four participants.
","abstract_html":"<p>A study was designed in order to assess the effectiveness of a positive self-modeling strategy in increasing the performance of four University of the Pacific baseball players. A multiple baseline design across participants was used as a means of assessing the effectiveness of the self-modeling technique. Participants viewed edited positive self-modeling videotapes of their own batting performance. Measures were taken on: (a) the number of line drive hits; (b) ground ball hits; (c) the number of times the participant hit a ground ball, but was thrown out; (d) the number of times the participant hit a line drive, but it was caught; (e) swings and misses; (f) not swinging at a strike (called strikes); (g) not swinging at a ball (called balls); (h) the number of foul balls; and (i) the number of pop ups. In addition, batting averages were kept for game performance. It was expected that participants would show an increase in hits, a decrease in hit outs, a decrease in called strikes, an increase in called balls, a decrease in foul balls, and an increase in batting average when each participant began the positive self-modeling. The performance of those participants not yet viewing their positive self-modeling tape was not expected to show such improvement. Improvement was observed in three out of the four participants.</p>","abstract_has_math":false,"creators":["Boyer, Brent Leonard"],"institution":null,"degree_name":"Master of Arts (M.A.)","degree_level":"Thesis","degree_discipline":"Graduate Studies","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1987,"date_issued":"1987-01-01T08:00:00Z","date_published":"1987-01-01T08:00:00Z","updated_at":"2026-07-24T05:36:28Z","subjects":["Adaptive control systems","Batting (Baseball)","Self-help techniques","Sports Psychological aspects","Arts and Humanities","Social and Behavioral Sciences"],"languages":[],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/NKC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://scholarlycommons.pacific.edu/uop_etds/501","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Boyer, Brent Leonard"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["1987-01-01T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Graduate Studies"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Arts (M.A.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Adaptive control systems","Batting (Baseball)","Self-help techniques","Sports Psychological aspects","Arts and Humanities","Social and Behavioral Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/NKC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarlycommons.pacific.edu/uop_etds/501"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A study was designed in order to assess the effectiveness of a positive self-modeling strategy in increasing the performance of four University of the Pacific baseball players. A multiple baseline design across participants was used as a means of assessing the effectiveness of the self-modeling technique. Participants viewed edited positive self-modeling videotapes of their own batting performance. Measures were taken on: (a) the number of line drive hits; (b) ground ball hits; (c) the number of times the participant hit a ground ball, but was thrown out; (d) the number of times the participant hit a line drive, but it was caught; (e) swings and misses; (f) not swinging at a strike (called strikes); (g) not swinging at a ball (called balls); (h) the number of foul balls; and (i) the number of pop ups. In addition, batting averages were kept for game performance. It was expected that participants would show an increase in hits, a decrease in hit outs, a decrease in called strikes, an increase in called balls, a decrease in foul balls, and an increase in batting average when each participant began the positive self-modeling. The performance of those participants not yet viewing their positive self-modeling tape was not expected to show such improvement. Improvement was observed in three out of the four participants.
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"],"dc:identifier":["https://scholarlycommons.pacific.edu/uop_etds/501"],"dc:rights":["http://rightsstatements.org/vocab/NKC/1.0/"],"dc:source":["135"],"dc:subject":["Adaptive control systems","Batting (Baseball)","Self-help techniques","Sports Psychological aspects","Arts and Humanities","Social and Behavioral Sciences"],"dc:title":["Using the self-as-a-model with video editing in athletic performance"],"thesis:degree_discipline":["Graduate Studies"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Arts (M.A.)"]},"updated_at":"2026-07-24T05:36:28Z"}