Search results for author:"Spyros Konstantopoulos"
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International Journal of Educational Research Vol. 83, No. 1 (2017) pp. 160–180
This study investigated interim assessments effects on the achievement gap. The data were collected from a field experiment conducted in 2010–2011 in K-8 public schools in Indiana in the U.S. Two-level models were utilized to determine whether...
Beth W. Kubitskey; Richard J. Vath; Heather J. Johnson; Barry J. Fishman; Spyros Konstantopoulos; Gina J. Park
Teaching and Teacher Education: An International Journal of Research and Studies Vol. 28, No. 3 (April 2012) pp. 418–427
As teacher professional development research includes more experimental designs, new challenges arise. We examine the threat of participant attrition as an example of the types of problems researchers face. Counter-intuitively, higher levels of...