title: Construct Validation of the Self-Efficacy Teaching and Knowledge Instrument for Science Teachers-Revised (SETAKIST-R): Lessons Learned.
abstract: Described herein is the academic lineage and independent validation of the Self-Efficacy Teaching and Knowledge Instrument for Science Teachers-Revised (SETAKIST-R). Data from 334 K-12 science teachers were analyzed using Partial Credit Rasch models. Principal components analysis on the person-item residuals suggest two latent dimensions: Knowledge and Teaching Self-Efficacies. Item-fit statistics were used to select items for each subscale. Person and item separation (reliability) indices were quite low, and we noted disordered response patterns on the person-item maps that revealed problems with item content and/or scaling for both subscales. These issues include the presence of: verbal negatives, ambiguous modifiers, counter-intuitive scaling, and an "undecided/uncertain" option. The SETAKIST-R, in its current form, cannot be recommended as a measure of science teacher self-efficacy.
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA.
authors.forename: Linda A
authors.initials: LA
authors.lastname: Pruski
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA.
authors.forename: Sharon L
authors.initials: SL
authors.lastname: Blanco
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA.
authors.forename: Rosemary A
authors.initials: RA
authors.lastname: Riggs
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA.
authors.forename: Kandi K
authors.initials: KK
authors.lastname: Grimes
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA.
authors.forename: Chase W
authors.initials: CW
authors.lastname: Fordtran
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA.
authors.forename: Gina M
authors.initials: GM
authors.lastname: Barbola
authors.affiliation: Department of Epidemiology and Biostatistics, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7933, San Antonio, TX 78229-3900 USA.
authors.forename: John E
authors.initials: JE
authors.lastname: Cornell
authors.affiliation: Division of Geriatrics, Gerontology, and Palliative Care, Department of Medicine, Teacher Enrichment Initiatives, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7780, San Antonio, TX 78229-3900 USA ; Barshop Institute for Aging and Longevity Studies, University of Texas Health Science Center at San Antonio, 15355 Lamda Drive, MSC 7755, San Antonio, TX 78245 USA ; Institute for Integration of Medicine and Science, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, MSC 7759, San Antonio, TX 78229-3900 USA.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Lichtenstein
keywords: Rasch analysis; SETAKIST-R; Self-efficacy teaching and knowledge instrument for science teachers-revised; Teacher efficacy; Teacher professional development; Teacher self-efficacy beliefs