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Hofmann, Wilhelm; De Houwer, Jan; Perugini, Marco; Baeyens, Frank; Crombez, Geert – Psychological Bulletin, 2010
This article presents a meta-analysis of research on "evaluative conditioning" (EC), defined as a change in the liking of a stimulus (conditioned stimulus; CS) that results from pairing that stimulus with other positive or negative stimuli (unconditioned stimulus; US). Across a total of 214 studies included in the main sample, the mean…
Descriptors: Stimuli, Conditioning, Effect Size, Meta Analysis
Brainerd, Charles J.; Hooper, Frank H. – 1974
This report reviews some ostensibly conflicting empirical findings which have been reported in conjunction with Elkind's (1967) conjecture that Piaget's conservation problems tap two distinct concepts. The discrepant findings which report on the order of emergence of identity conservation and equivalence conservation are discussed. An analysis of…
Descriptors: Cognitive Processes, Conservation (Concept), Developmental Psychology, Elementary School Students