Research Support
Researchers at CLI examined psychometric characteristics of the COT in a study of 193 coaches working with 3,909 preK teachers in a statewide professional development program. Included below are some key findings:
Survey Responses: 88.96% of coaches felt that the COT was helpful or very helpful for establishing goals with teachers, and 76.60% felt the technology-based, goal-setting and tracking system was helpful or very helpful for improving teacher implementation of evidence-based practices.
Reliability: We found evidence of acceptable internal consistency with alphas ranging from .73 to .87. Consistency in our subdomain and domain structure suggests that, even across our relatively large number of items, coaches are able to make meaningful distinctions among closely linked domains of instruction and, by extension, set highly targeted goals for improvement.
Construct Validity: We found promising evidence of construct validity for the COT in that the factor structure for eight domains across language, literacy, and math instruction conformed to our theoretical conceptions.
Predictive Validity: We found promising evidence that several COT language and literacy domains relate significantly to growth in children’s literacy outcomes for letter knowledge in English (.21–.43) and Spanish (.32–.40), as well as phonological awareness in English (.18 –.36). This demonstrates predictive validity between theoretically related teacher behaviors and child skills.
Crawford, April D., Zucker, Tricia A., Williams, Jeffrey M., Bhavsar, Vibhuti, & Landry, Susan H. (2013). Initial validation of the prekindergarten classroom observation tool and goal setting system for data-based coaching. School Psychology Quarterly (4), pp. 277-300.