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Direct linkGraham, Suzanne E.; Kurlaender, Michal – Journal of Educational Research, 2011
Educational researchers frequently study the impact of treatments or interventions on educational outcomes. However, when observational or quasiexperimental data are used for such investigations, selection bias can adversely impact researchers' abilities to make causal inferences about treatment effects. One way to deal with selection bias is to…
Descriptors: Investigations, Educational Research, Research Methodology, Educational Objectives
