Tests an educational-effectiveness model by reanalyzing a large-scale dataset containing (Dutch) elementary school data of subsequent student cohorts, their teachers, and their schools. Researchers found some expected positive achievement effects of individual classroom and school factors, but these were unstable across school subjects and student…

Criticizes the current status of school-level factors as they appear in research reviews and in school-effectiveness models, from both a theoretical and empirical perspective. Argues that most studies do not investigate factors at the classroom level. Outlines a theoretical basis for these factors based on learning theories and instruction…

Randomized response (RR) is a well-known method for measuring sensitive behavior. Yet this method is not often applied because: (i) of its lower efficiency and the resulting need for larger sample sizes which make applications of RR costly; (ii) despite its privacy-protection mechanism the RR design may not be followed by every respondent; and…