进化心理学视角下的智力研究

进化心理学和差异心理学是心理学的两个分支。进化心理学认为智力是一种进化的适应。差异心理学中智力是个体差异变量。本文试图整合二者的观点。认为智力既是进化的适应,也是个体差异变量。这将启示进化心理学家去研究更广范围的心理特质,允许智力研究和差异心理学运用进化心理学的理论和概念。本文还介绍了与智力进化相关的热带草原法则和Kanazawa的Savanna—IQ互动假说。     

Reliability and validity of the Spanish version of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A)

The aim of this study was to determine the test-retest reliability and internal consistency of the scales of the Spanish version of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A; Butcher et al., 1992). Two samples of 939 and 109 Spanish adolescents ages 14 to 18 years were assessed with the MMPI-A in their school environment. The first sample responded to the inventory once, whereas the second sample responded to it on 2 occasions with a 2-week interval between sessions. Results showed no significant differences in means or variances between the first and the second test administration for most MMPI-A scales. Test-retest reliability ranged between .62 (Amorality, Ma(1)) and .92 (Immaturity, IMM); most correlations exceeded .70. Internal consistency values for the MMPI-A scales in the pretest and posttest were very similar overall. External validity of the MMPI-A was demonstrated through several significant correlations between its scales and YSR/11-18 syndromes and social interaction measures. The highest correlations were established between the Anxious/Depressed YSR/11-18 scale and other MMPI-A scales such as Schizophrenia (Sc), Welsh's Anxiety (A), Adolescent-Anxiety (A-anx) and Adolescent-Alienation (A-aln), and between the Social Avoidance and Distress Scale and the MMPI-A Adolescent-Social Discomfort (A-sod) scale.     

Analysis of movement patterns by elite male players of beach volleyball

The aim of this study was to analyse and compare movement pattems and direction of locomotion in professional men's beach volleyball. A quantitative analysis of beach volleyball play was carried out for 10 players in the European Beach Volleyball Championship 2005. Video recordings were made of the 1,997 movements in 4 matches. Analysis showed that male players used more offensive than defensive movement patterns. Defensive movement patterns were more blocks and defense than receptions. Offensive movement patterns were more attack and placements than attack preparation moves. Advance was the direction of locomotion most used. Identifying and understanding such movement patterns are vital to defining specific, effective training strategies for men's beach volleyball players.     

eCAT-Listening: design and psychometric properties of a computerized adaptive test on English Listening

In this study, eCAT-Listening, a new computerized adaptive test for the evaluation of English Listening, is described. Item bank development, anchor design for data collection, and the study of the psychometric properties of the item bank and the adaptive test are described. The calibration sample comprised 1.576 participants. Good psychometric guarantees: the bank is unidimensional, the items are satisfactorily fitted to the 3-parameter logistic model, and an accurate estimation of the trait level is obtained. As validity evidence, a high correlation was obtained between the estimated trait level and a latent factor made up of the diverse criteria selected. The analysis of the trait level estimation by means of a simulation led us to fix the test length at 20 items, with a maximum exposure rate of .40.     

Attitude towards women of gender schematic vs aschematic individuals

After the fourfold gender typology (1970s), a dual model--gender schematic versus aschematic individuals--emerged in the 1980s. In this research, the relationship between gender schemas and attitudes towards women's rights were tested. Two studies were carried out (2001 and 2009) with adolescents (boys and girls) from 12 to 14 years old, with 359 participants in 2001 and 224 in 2009, using two instruments: the Bem Sex Role Inventory and the Attitudes Towards Women Scale. Factor analysis and ANOVAs were carried out. The results of both studies supported the hypothesis that girls maintain more favourable attitudes about themselves than boys do. Both studies supported the hypothesis that feminine and androgynous individuals display similar attitudes towards women, but they differ from the other gender categories. Masculine boys and feminine girls did not show differences in attitudes towards women in comparison to aschematic or cross-gendered adolescents. Inconsistent results were found between studies regarding the hypothesized differences between typical and atypical schematics in attitudes towards women, as well as between undifferentiated and gender schematic individuals. The implications of these results for the instruments used, as well as for theories, are considered.     

A century of research on masculinity and femininity: a critical review

The psychological study of masculinity (M) and femininity (F) throughout the twentieth century shows two very different approaches. In the first half of last century, authors try to test the bipolar continuum hypothesis, whereas during the second half, the hypothesis of two orthogonal dimensions predominates. Empirical studies carried out in various countries with the classic M and F scales show that the data do not support: a) the bipolar continuum hypothesis; b) the close relationship between masculinity/men and femininity/women as the single pattern of functional development; and c) the convergence validity of the different assessment instruments. In turn, the empirical results obtained with the new M and F scales show: a) the multidimensionality instead of bi-dimensionality of the different scales; b) that the different M and F scales are not equivalent; and c) that there is no theory capable of guiding the development of new scales to assess these constructs. At the beginning of the 21st century, after the critical evaluation of the studies carried out during about 100 years, we face a critical question: is it worthwhile to continue talking about M and F within the field of science and, more specifically, within the field of psychology?     

Effects of the heterogeneity of the variances on reliability generalization: an example with the Beck Depression Inventory

The studies of Reliability Generalization (RG) analyze estimates of the reliability of scores from a test provided by a set of studies. As their goals and designs are usually very varied, the sampling of individuals obeys very different schemas. Thus, the variances of the scores might be more heterogeneous than expected from random sampling. Two main problems associated with this potential source of heterogeneity should be taken into account. First, heterogeneity has been usually identified subjectively, not very rigorously. Second, once identified, it has not been taken into account in subsequent analyses. In previous papers, various ways to face both problems have been proposed. The procedures are summarized and applied to a set of 65 independent studies that report estimates of the internal consistency of the Beck Depression Inventory. The results show why any study of RG should take into account the heterogeneity of the variances. In addition to this, the only source that additionally accounts for significant variance in the coefficients is the version of the test employed: the second and third versions of the test involve significant increases in the internal consistency. The consequences of ignoring the heterogeneity of the variances are discussed.     

Factor structure analysis of the Preschool and Kindergarten Behavior Scale scores in Spanish population

Social competence and antisocial behavior in children are interesting variables for researchers and educators. Nonetheless, there are few assessment instruments capable of measuring the two constructs in small children. The aim of this study is to verify the structural validity of the Preschool and Kindergarten Behavior Scale for Teachers and Caregivers (PKBS-2), in order to determine the theoretical model that best fits the data from a Spanish sample. 1509 children from preschool education (741 males and 768 females) from 3 to 6 years old (M= 3.78; SD= 0.815) participated in the study. Data was analyzed using the Statistical Package for the Social Sciences (SPSS-15.0) and the Structural Equations Program (EQS 6.1). The resulting models of social skills and behavioral problems show adequate fit indexes, statistically significant loadings, and a high internal consistency index (Cronbach's alpha). Lastly, the structural model confirms a two-factor structure: a first factor of Social Skills, comprising three variables (social cooperation, social interaction, and social independence), and a second factor of Behavior Problems, comprising two variables (externalization and internalization of problems).     

Sadness, suicide, and their association with video game and internet overuse among teens: results from the youth risk behavior survey 2007 and 2009

We investigated the association between excessive video game/Internet use and teen suicidality. Data were obtained from the 2007 and 2009 Youth Risk Behavior Survey (YRBS), a high school-based, nationally representative survey (N = 14,041 and N = 16,410, respectively). Teens who reported 5 hours or more of video games/Internet daily use, in the 2009 YRBS, had a significantly higher risk for sadness (adjusted and weighted odds ratio, 95% confidence interval = 2.1, 1.7-2.5), suicidal ideation (1.7, 1.3-2.1), and suicide planning (1.5, 1.1-1.9). The same pattern was found in the 2007 survey. These findings support an association between excessive video game and Internet use and risk for teen depression and suicidality.     

记忆过程中海马CA1区神经元的集群放电特征

观察空间工作记忆过程中海马CA1区神经元群的放电特征。应用多通道神经元集群放电记录技术, 同步观察和记录清醒大鼠在执行延迟选择任务时的行为轨迹以及海马CA1区神经元的放电活动。发现：海马CA1区位置细胞的位置野是在学习过程中逐渐形成并可消退; 部分位置细胞的放电对未来目标定向性行为具有预测作用; 在空间工作记忆过程中, 神经元放电之间的相关性加强, 神经元之间以及神经元与局部场电位之间存在相位编码方式。结果提示海马CA1区神经元参与对空间信息的初级编码和加工, 并为未来行为决策提供有效信息, 而且海马对信息的加工是通过局部神经网络进行, 时间编码可能是海马信息加工的重要方式之一。