Search results for author:"Spyros Konstantopoulos"
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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...