The conjoint retention hypothesis (CRH) claims that students recall more text information when they study geographic maps in addition to text than when they study text alone, because the maps are encoded spatially (Kulhavy, Lee, & Caterino, 1985). This claim was recently challenged by Griffin and Robinson (2000), who found no advantage for maps…

Two experiments explored whether children's correct answers to counter factual and future hypothetical questions were based on an understanding of possibilities. Children played a game in which a toy mouse could run down either 1 of 2 slides. Children found it difficult to mark physically both possible outcomes, compared to reporting a single…

Providing a developmental extension of the cognitive theories of depression, researchers and theorists (e.g., Cole & Turner, 1993; Rose & Abramson, 1992) have suggested that during early to middle childhood, attributional styles may mediate rather than moderate the association between negative life events and the development of depression. Within…

Many important research hypotheses concern conditional relations in which the effect of one predictor varies with the value of another. Such relations are commonly evaluated as multiplicative interactions and can be tested in both fixed-and random-effects regression. Often, these interactive effects must be further probed to fully explicate the…

The authors present 10 experiments that challenge some central assumptions of the dominant theories of visual search. Their results reveal that the complexity (or redundancy) of nontarget items is a crucial but overlooked determinant of search efficiency. The authors offer a new theoretical outline that emphasizes the importance of nontarget…

This paper reports an empirical study comparing the role of discourse and knowledge representations (graphical evidence mapping) in face-to-face versus synchronous online collaborative learning. Prior work in face-to-face collaborative learning situations has shown that the features of representational notations can influence the focus of…

Seventy-two 2-year-olds participated in a study designed to test two competing accounts of the effect of contextual change on children's ability to learn a word for an object. The mechanistic account hypothesizes that any change in context that highlights a target object will lead to word learning; the social-pragmatic account maintains that a…

This article provides an overview of the recent immigrant phenomenon in Japan and explains the complexity of the social integration (SI) of Nikkei Brazilians. Through the research, factors that explain the degree of social integration (SI) of Nikkei Brazilians are identified. Basic data include triangulated results from a survey of 80 people and…

The aim of this research was to show the importance of instruction in learning a specific set of words. Two different tasks were used in the experiment: one in which subjects were required to fill in sentences and choose the appropriate answer in a multiple choice exercise (lexical test), and the other was a rating task designed to assess semantic…

The H. Bosch, F. Steinkamp, and E. Boller (see record 2006-08436-001) meta-analysis reaches mixed and cautious conclusions about the possibility of psychokinesis. The authors argue that, for both methodological and philosophical reasons, it is nearly impossible to draw any conclusions from this body of research. The authors do not agree that any…

Our purpose in this exploratory investigation was to examine the relationship between degree of impairment in grammatical morpheme comprehension and event-related potential measures of differentiated processing of speech syllables in 10 children with Down syndrome. Results strongly support the hypothesized association. Graphs of the association…

In the context of reviewing an article for this journal (van der Linden & Sotaridona, this issue, pp. 283-304) the topic of unconditional and conditional hypothesis testing came under consideration. While this is hardly a new issue (consider, for example, arguments regarding the chi square vs. Fisher exact test of independence for a 2 x 2…

The psychological literature currently emphasizes reporting the "effect size" of research findings in addition to the outcome of any tests of significance. However, some confusion may result from the fact that there are three distinct uses of effect sizes in the psychological literature, namely, power analysis, research synthesis, and research…

This study of ethnically diverse participants explored the relationship of gender self-confidence to subjective well-being. The 2 components of gender self-confidence (gender self-definition and gender self-acceptance) were assessed using the Hoffman Gender Scale (R. M. Hoffman, 1996; R. M. Hoffman, L. D. Borders, & J. A. Hattie, 2000). The…

We present the results from an experiment that tests the perception of English consonantal sequences by Korean speakers and we confirm that perceptual epenthesis in a second language (L2) arises from syllable structure restrictions of the first language (L1), rather than linear co-occurrence restrictions. Our study replicates and extends Dupoux,…