The calculation and use of effect sizes—such as d for mean differences and r for correlations—
has increased dramatically in second language (L2) research in the last decade …

This study employed (and reports in detail) systematic procedures for research synthesis
and meta‐analysis to summarize findings from experimental and quasi‐experimental …

EDUCATIONAL PSYCHOLOGY Page 1 ROBERT E. SLAVIN Johns Hopkins University
EDUCATIONAL PSYCHOLOGY THEORY AND PRACTICE twelfth edition Page 2 CHAPTER …

The finding that extrinsic rewards can undermine intrinsic motivation has been highly
controversial since it first appeared. A meta-analysis published in this journal (Cameron & …

Established as the foremost textbook on communication, the seventh edition of Owen
Hargie's Skilled Interpersonal Communication is thoroughly revised and updated with the …

in this review we examine recent research in the area of motivation in mathematics
education and discuss findings from research perspectives in this domain. We note …

Was unterscheidet die psychische Gestaltung der Kinder von jener der Jugendlichen? Was
sind optimale Umwelten für eine produktive Adoleszenz? Wie können Lehrer, Eltern und …

Describes the development and testing of a German-language instrument for assessing
learning strategies in university students. The questionnaire distinguishes among cognitive …

Peer Assisted Learning (PAL) involves children in school consciously assisting others to
learn, and in so doing learning more effectively themselves. It encompasses peer tutoring …

Economics is solidly based on the workings of incentives. Extra rewards will increase and
extra costs will decrease the frequency of a particular type of behavior. In sociology, Weber …