Book reviews

Henry Holt & Co.     

Female odors evoke ultrasounds from male mice

Four experiments investigated the stimulus properties of female mice that influence ultrasound production by adult males. Female urine alone was less effective in evoking ultrasounds than was the female in male-female pairs. Visual cues were not necessary, since there was no difference in the incidence or latency of ultrasounds from male-female pairs when tested in light and dark conditions. A presently unspecified chemical cue produced by females, whose effectiveness is mediated by olfaction, was sufficient to evoke ultrasounds from male mice. The role of this chemical cue in a multimodal sequential communicative chain is discussed.     

The perception of stimulus shape: the influence of velocity of stimulus movement

46 3-month-old infants were presented with geometric stimuli moving laterally at two different velocities (34.8 degrees/sec; 103.3 degrees/sec). The results were interpreted as evidence that 3-month-old infants could discriminate between geometric forms moving at velocities that, according to previous findings, might interfere with shape discrimination. The findings are discussed in relation to the possible interactive effect of type and velocity of movement on geometric form discrimination.     

Politics and publishing in a democratic society: Technical breakthroughs and research agendas

Publishing flourishes best in a democratic society. Technological changes alter the relationship of forces so that opportunities for publishing expand. A broader range of information channels, for example, increases choice and makes authoritarian rule more difficult. Publishing also enhances democracy when decisions are made on the basis of merit rather than top-down legislation. Research should reflect awareness of the interaction of publishing and politics. Such areas as the relationship between public and private sectors, the impact of internationalization, non-U.S. ownership of information, mergers and acquisitions, and conflict between the First Amendment and copyright law, are examples of areas in which democratic outcomes are critical. Decision making in publishing would benefit from heightened awareness of the political consequences of publishers’ activities. Irving Louis Horowithz is the author ofCommunicating Ideas: The Politics of Publishing Mary E. Curtis has written widely on subjects of concern to professional publishing.     

Comparing Factors Related to Reading Comprehension in Adolescents Who Speak English as a First (L1) or Second (L2) Language

This study examined factors related to reading comprehension in adolescents who spoke English as a first language (L1) and English as a second language (L2). Measures of decoding, vocabulary knowledge, and reading comprehension were administered to 31 L1 and 44 L2 speakers. English L2 adolescents scored significantly lower than their L1 peers on all measures. Factor analyses produced different configurations of variables for each group. For L1 learners, measures of decoding and vocabulary were separate factors but were one factor for English L2 learners. For the L1 learners, it was only the measure of vocabulary that was a significant predictor of reading comprehension. For L2 learners, decoding, vocabulary, and the interaction of decoding and vocabulary were all significant predictors of reading comprehension. Relations among these variables in adolescents who are beginning to learn English as an L2 are explored.     

Comparison of Mediated Effects: A Correlation Structure Modeling Approach

A correlation structure modeling method for comparison of mediated effects is outlined. The procedure permits point and interval estimation of differences in mediator effects, and is useful with models postulating 1 or more predictor, intervening, or response variables that may also be latent constructs. The approach allows scale-free evaluation of differences in effects of any explanatory upon criterion variables transmitted via studied mediators, and is applied on data from a study of older adults with recent vision loss.     

Representational guidance and student engagement: examining designs for collaboration in online synchronous environments

In this paper we report the results of a study which investigated the affordances of multi-user virtual environments (MUVEs) for collaborative learning from a design perspective. Utilizing a mixed methods approach, we conducted a comparative study of the effect of varying representational and interactional design features on a collaborative design activity in three online synchronous environments. We compared environments featuring multiple modes of interaction (MUVEs), shared representations (text chat and 2D still images) and text-only features. Sixty-one students enrolled in an undergraduate course on Child Development participated in the study. Participants were asked to design a theoretically-based, developmentally appropriate, preschool classroom setting. Students were randomly assigned to one of three online learning environments that provided varying levels of representation and interaction. Significant differences in collaborative problem solving interactions were found. Participants in the shared representations + text condition evidenced stronger learning outcomes as regards substantive discussion and integration of child development concepts; while participants in the MUVE condition reported the most enjoyment with the experience. These findings are explained by the concepts of representational guidance, representational bias, educational affordances and interface design metaphors. Suggestions for the design of MUVEs for collaborative learning are provided.     

Use of the MSJCC: A content analysis of ACA journals

Using quantitative content analysis, we examined the prevalence and use of the Multicultural Social Justice Counseling Competencies (MSJCC) in 21 ACA journals between June 2015 and July 2021. We found that only 7.62% of the articles (n = 2860) referenced the MSJCC. Implications for counselor educators are discussed.