This research revealed both similarities and striking differences in early language proficiency among infants from a broad range of advantaged and disadvantaged families. English-learning infants ("n" = 48) were followed longitudinally from 18 to 24 months, using real-time measures of spoken language processing. The first goal was to…

Individuals who engage in problem behavior should be taught an appropriate behavior that meets the same function and replaces the problem behavior. Often, there are several appropriate replacement behaviors, and guidance is needed to choose among them. This study employs a hybrid single subject design with a baseline, alternating treatments, and…

Hulstijn and Laufer (2001) proposed a motivational-cognitive construct of task-induced involvement to account for variation in effectiveness among different vocabulary learning tasks. Building upon their original research, this study consisted of two experiments investigating the involvement load hypothesis in vocabulary learning. Experiment 1…