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Using Generalizability Theory To Measure Sources Of Variance On A Special Education Teacher Observation Tool, Carrie Lisa Semmelroth
Using Generalizability Theory To Measure Sources Of Variance On A Special Education Teacher Observation Tool, Carrie Lisa Semmelroth
Carrie Semmelroth
This study used generalizability theory to identify sources of variance on a pilot observation tool designed to evaluate special education teacher effectiveness, and was guided by the question: How many occasions and raters are needed for acceptable levels of reliability when using the pilot RESET observation tool to evaluate special education teachers? At the time of this study, the pilot Recognizing Effective Special Education Teachers (RESET) observation tool included three evidence-based instructional practices (direct, explicit instruction, whole-group instruction, and discrete trial teaching) as the basis for special education teacher evaluation. Eight teachers (raters) were invited to attend two sessions (October …