Assessment of teacher competence using video portfolios: Reliability, construct validity, and consequential validity
TATE Volume 27, Number 6, ISSN 0742-051X Publisher: Elsevier Ltd
The richness and complexity of video portfolios endanger both the reliability and validity of the assessment of teacher competencies. In a post-graduate teacher education program, the assessment of video portfolios was evaluated for its reliability, construct validity, and consequential validity. Although video portfolio facilitated a reliable and valid assessment of teacher competencies, procedures to improve assessment quality were also revealed and are therefore discussed: more explicit grounding of assessment results in the data, peer debriefing, prolonged engagement with the assessment data, cross-checking to find confirmatory or counter examples.
Admiraal, W., Hoeksma, M., van de Kamp, M.T. & van Duin, G. (2011). Assessment of teacher competence using video portfolios: Reliability, construct validity, and consequential validity. Teaching and Teacher Education: An International Journal of Research and Studies, 27(6), 1019-1028. Elsevier Ltd.