The reality of racial differences: A rejoinder with new evidence

The criticisms of my race differences paper are considered within the following questions: (1) Do the racial differences exist as described or are they due entirely to faulty measurement or reporting? (2) Are the racial differences due partly to genetic factors as suggested or are they due entirely to environmental influences? (3) Does the r/K framework provide a good fit to the data or is some other framework more useful? Special attention is given to the issue of whether the racial differences are due to the genes or to social class and several lines of evidence are brought to bear to support the hypothesis that some of the differences are genetic. For example, inbreeding depression scores calculated from Japanese cousin marriages on the WISC are shown to predict black-white difference scores on the WISC-R.     

Toward disentangling sources of individual differences in appraisal and anger

ABSTRACT A theoretical framework is presented to explain individual differences in situation-specific emotional experience in terms of three different sources of variance: (a) individual differences in how one appraises one's circumstances, (b) individual differences in how appraisals are related to the experience of emotion, and (c) individual differences independent from situation and appraisal. The relative contribution and nature of these sources was examined empirically for the experience of anger based on data from two directed imagery studies (total N =1,192). Consistent results across the two studies demonstrated that variability in anger experience primarily stems from variability in how a situation is appraised and to a smaller extent from individual differences in the relations between the appraisals and anger and individual differences independent of appraisal. The findings further identified frustration as the central appraisal involved in anger. Implications for emotion theories and anger management programs are discussed.     

小学生与大学生口算时间和广度的比较研究

本研究的目的是比较小学生与大学生在口算时间和广度上的差异。30名大学生和30名6年级小学生接受了口算实验。结果显示：（1）大学生口算的广度明显大于小学六年级学生的口算广度。数字广度也大于小学生,但两者差异不显著;（2）在减法和除法的口算时间上,大学生明显短于小学六年级学生,但在乘法口算上无显著差异。     

Cultural influences on preference consistency: Consistency at the individual and collective levels

Previous research has shown that there are cultural differences in self-concept consistency across situations. However, little is known about cultural differences in preference consistency over time. The present research examined whether Americans are more consistent in their preferences over time than are Japanese. As hypothesized, there were cultural differences in self-reported ( and ) and actual ( and ) preference consistency over time. Further, cultural differences in preference consistency at the individual level (Study 1) were found to aggregate into collective level differences ( and ) in the consistency of preference trends, such as the popularity of baby names. Implications and future directions are discussed.     

Probability effects in choice reaction time tasks

This paper contains a short review of the main results that were obtained by the author in a series of experiments that constituted a study of the effects of signal probability on choice reaction time. The effects of stimulus probability are shown to be influenced by the following variables: (1) differences in the method of varying stimulus probability, (2) differences in task complexity, (3) differences in S-R code, and (4) differences in Ss’ motivation. The data that are considered here are the overall mean RT for particular signals and the mean RT for sequential repetitions. Two questions, related to the psychological “nature” of the probability effects in choice RT are discussed: (1) The question of the relationship between the relative frequency and the number of alternatives as two different ways of determining the probability effect in choice RT; and (2) the question of identifying the main determinants of the trial-to-trial variability of RT in such experiments.

     

Are cognitive sex differences disappearing? Evidence from Spanish populations

Sex differences in cognitive abilities were determined using the norms from two standardizations of the Differential Aptitude Test (DAT) and the Primary Mental Abilities (PMA) conducted between 1979 and 1995 in Spain. The standardized sex differences (ds) were computed separately for the DAT and the PMA subscales. Males scored higher in the DAT subscales Verbal Reasoning, Numerical Ability, Spatial Relations and Mechanical Reasoning, as well as in the PMA subscales Numerical Ability and Mental Rotation. Females scored higher in Inductive Reasoning (PMA-R) in the 1979 and 1995 standardizations. Taken together, these data do not support the hypothesis that cognitive sex differences are disappearing: there are still some differences favoring females and still some differences favoring males.     

Five potential principles for understanding cultural differences in relation to individual differences

This paper deals with psychological differences between two cultures, with respect to the differences between individuals in those same cultures. Five principles are presented which describe either actual or probable empirical relationships between within- and between-culture differences, and a possible theoretical account is given for each of the presumed differences. (1) The differences between “cultures” seem “bigger” than the actual differences between the individuals in these same cultures. This relation is attributed to the idea that universal human biological predispositions are often opposed by cultural traditions, so the outcome is somewhat of a compromise between the two. (2) Differences between individuals in different cultures are generally larger in behavior than in thoughts or feelings This is attributed to the fact that it is easier to socialize behavior than mental events. (3) Many cultural differences are expressed in individuals in terms of different default responses or interpretations or preferences for the same situation. Dominant responses in one culture are usually a less salient part of the repertoire of individuals in another culture. (4) Much of the effect of culture, and our impression of culture differences, results from the physical/social artifacts (environments, institutions) created by the culture. There is a strong tendency by psychologists to under-rate or ignore the effects of the physical environment. (5) In the contemporary world, differences between individuals in two cultures will be larger in older generations. Cultural differences may be markedly reduced in the most recent generations, on account of globalization. The position put forth is an attempt to integrate the ideas that there are real human predispositions of various sorts and that culture is a powerful force, and to explain why it is surprisingly easy for us to understand the viewpoint of people from other cultures (their “reality”is often a less preferred alternative in our own repertoire).     

Identity Formation Re-revisited: A Rejoinder to Waterman on Developmental and Cross-Cultural Issues

This article is a Rejoinder to Waterman's (1999) Commentary on our longitudinal study of identity development (Meeus, Iedema, Helsen, & Vollebergh, 1999). In this rejoinder we consider six points: the similarities and differences between American and Dutch research with respect to (a) the direction of identity development, (b) the relative stability of the statuses, and (c) gender differences; we then discuss (d) the American research on age differences in the frequency of specific patterns of identity status change, (e) the superiority of log-linear analysis compared with cross-table analysis, and (f) age differences with respect to trajectories and mechanisms of identity development. The most important substantive conclusions are that identity development is systematically found to be progressive and may be described with the trajectory diffusion → closure/moratorium → achieving commitment, and that age differences are found with respect to the trajectories but not with respect to the mechanisms of identity development.     

Capturing the Structure of Distinct Types of Individual Differences in the Situation‐specific Experience of Emotions: The Case of Anger

The aim of this paper was to understand why some people experience certain emotions in a specific situation, whereas others do not. We postulate that these individual differences arise from individual differences in two underlying processes of emotion elicitation: (i) individual differences in the emotion components (appraisals and action tendencies) that situations activate in a person and (ii) individual differences in how these emotion components are related to subjective emotional experience. In this paper, we re‐analysed data from two studies on anger to capture the structure of these two types of individual differences by using clustering modelling techniques. Consistent results across the two studies demonstrated that individuals differ in anger because they (i) differ in how easy they experience anger‐relevant appraisals (Studies 1 and 2) and action tendencies (Study 2) in increasingly negative situations and (ii) differ in which of these components are necessary to experience anger. Copyright © 2011 John Wiley & Sons, Ltd.     

小学生攻击性行为的心理分析及对策研究

本研究采用同伴提名法对宁波市560名小学生进行调查,探讨了小学生攻击行为的类型特点及其年级差异,结果发现：（1）小学生言语攻击的比率最高,其次是直接身体攻击,间接攻击的发生率最低。（2）小学生三类攻击行为的比例均存在显著的年级差异。（3）小学生各年级之间既有存在显著性差异,也有不存在显著性差异。同时,本研究进一步分析了小学生攻击性行为产生的原因及其教育干预的对策。     

Are there fundamental differences in the peripheral mechanisms of visceral and somatic pain?

There are some conspicuous differences between the sensibilities of cutaneous and visceral tissues: (1) Direct trauma, which readily produces pain when applied to the skin, is mostly without effect in healthy visceral tissue. (2) Pain that arises from visceral tissues is initially often poorly localised and diffuse. (3) With time, visceral pains are often referred to more superficial structures. (4) The site of referred pain may also show hyperalgesia. (5) In disease states, the afflicted viscera may also become hyperalgesic. In this target article, I consider to what extent differences in the physiology, anatomy, and chemistry of peripheral processing systems explain these different sensibilities. In almost every aspect, there are subtle differences in the properties of the processing mechanisms for cutaneous and visceral information. These may arise because of distinct developmental cues operating in the two domains. Many of the differences between visceral and cutaneous afferents are quantitative rather than qualitative. The quantitative differences, for example in the density of afferent innervation, can be large. The quantitative differences in the numbers of afferents alone may be a sufficient explanation for some aspects of the differential sensibility, for example, the poor localisation of sensation and the apparent insensitivity to focal yet tissue-damaging stimuli. In addition, the few clear qualitative differences apparent in the innervations of the two tissue types may be of special importance. That the encoding of visceral nociceptive events may occur by an intensity mechanism rather than a specificity mechanism could be the key difference in viscerosensory and somatosensory processing.     

Sex differences in mathematical reasoning ability at age 13: their status 20 years later

Reported is the 20-year follow-up of 1,975 mathematically gifted adolescents (top 1%) whose assessments at age 12 to 14 revealed robust gender differences in mathematical reasoning ability. Both sexes became exceptional achievers and perceived themselves as such; they reported uniformly high levels of degree attainment and satisfaction with both their career direction and their overall success. The earlier sex differences in mathematical reasoning ability did predict differential educational and occupational outcomes. The observed differences also appeared to be a function of sex differences in preferences for (a) inorganic versus organic disciplines and (b) a career-focused versus more-balanced life. Because profile differences in abilities and preferences are longitudinally stable, males probably will remain more represented in some disciplines, whereas females are likely to remain more represented in others. These data have policy implications for higher education and the world of work.     

IQ differences between the north and south of Italy: A reply to Beraldo and Cornoldi,Belacchi, Giofre,Martini, and Tressoldi

Beraldo (2010) and Cornoldi, Belacchi, Giofre, Martini, and Tressoldi (2010) (CBGMT) have eight criticisms of my paper (Lynn, 2010) claiming that the large north–south differences in per capita income in Italy are attributable to differences in the average levels of intelligence in the populations. CBGMT give results for seven data sets for IQs in the north and south of Italy. All of these show that IQs are higher than in the north than in the south, although the differences are not as great as those I calculated. Other criticisms to the effect that the PISA tests are not measures of intelligence are refuted. The results of two further studies are given that confirm that IQs in the north of Italy are approximately 10 IQ points higher than in south.     

Cultural bias in the WISC

It is often argued that IQ differences between groups of American Blacks and Whites are the result of IQ tests being culturally biased instruments. The present study attempts to determine the existence of cultural bias in the Wechsler Intelligence Scale for Children (WISC) by comparing Black and White children on: (1) loadings of the first principal component on the WISC subtests; (2) the rank order of item difficulty; (3) measuring the contribution to the total variance of the Race by Item interaction obtained by ANOVA; (4) and by attempting to stimulate race differences by within-race age differences. The results indicate that: (1) there is no evidence of specific factors peculiar to either racial group (the groups differ on what is common to all subtests); (2) the rank order of item difficulties is similar in both racial groups; (3) ANOVA reveals a significant Race by Item interaction, but one which accounts for less than five percent of the total variance, less than one percent in the case of age offset analysis; (4) the items which best discriminate between Blacks and Whites at any age level are also the items which best discriminate between age groups within-race. The data support the view that race differences are differences in mental maturity rather than in artifact of biased testing instruments.     

Sind Körperpsychotherapeuten anders?

Following the “Generic Model of Psychotherapy” differences of treatment models are relevant with respect to optimal matching with patient's illness experience.Therefore it seems necessary to work out differences and similarities of treatment models.The results of 91 therapists, trained in Concentrative Movement Therapy (KBT), in the “Development of Psychotherapist Common Core Questionnaire (DPCCQ)” are compared to the therapists' results in other DPCCQ-studies, to find out,wether there are differences in therapeutic self concepts (theoretical orientation, therapeutic goals and attitudes). A few special features for KBT-therapists can be found which reflect characteristic aspects of the method.Despite some differences concerning socio-demographic characteristics (sex, age and basic professional education) similarities to other therapists predominate.     

Pathogens, personality, and culture: disease prevalence predicts worldwide variability in sociosexuality, extraversion, and openness to experience

Previous research has documented cross-cultural differences in personality traits, but the origins of those differences remain unknown. The authors investigate the possibility that these cultural differences can be traced, in part, to regional differences in the prevalence in infectious diseases. Three specific hypotheses are deduced, predicting negative relationships between disease prevalence and (a) unrestricted sociosexuality, (b) extraversion, and (c) openness to experience. These hypotheses were tested empirically with methods that employed epidemiological atlases in conjunction with personality data collected from individuals in dozens of countries worldwide. Results were consistent with all three hypotheses: In regions that have historically suffered from high levels of infectious diseases, people report lower mean levels of sociosexuality, extraversion, and openness. Alternative explanations are addressed, and possible underlying mechanisms are discussed.     

Behavioral and physiological findings of gender differences in global-local visual processing

Hemispheric asymmetries in global-local visual processing are well-established, as are gender differences in cognition. Although hemispheric asymmetry presumably underlies gender differences in cognition, the literature on gender differences in global-local processing is sparse. We employed event related brain potential (ERP) recordings during performance of a global-local reaction time task to compare hemispheric asymmetries and processing biases in adult men (n=15) and women (n=15). Women responded more quickly to local targets while men did not differentially respond to hierarchical stimuli. ERP data indicated that women had P100 responses that were selectively lateralized to the left hemisphere in response to local targets and N150 responses that were smaller for global targets. They also had P300 responses that were greater following local stimuli. The physiological data demonstrate that male-female performance differences arise from biologically based differences in hemispheric asymmetry. Findings are discussed in the context of existing literature regarding gender differences, hemispheric specialization, and the role of stimulus characteristics.     

Relations among age, visual memory, and resting cerebral metabolism in 40 healthy men

Visual memory, as measured by the Benton Visual Retention Test (BVRT), and resting regional cerebral metabolic rates for glucose (rCMRglc), as measured by positron emission tomography (PET) and [18-F]fluorodeoxyglucose, were examined in 40 very healthy men, aged 21 to 83 years. Age-related differences in visual memory were found but were significantly smaller than differences reported in the general population. This discrepancy is attributable to our rigorous health screening. The age-related differences found in this sample are estimates of the lower limit of population differences unconfounded by disease. Age-related differences on undistracted delayed visual memory were greater than differences on immediate visual memory, suggesting age-related differences in spontaneous elaborative visual information processing. No relation between visual memory and resting rCMRglc was found, supporting the hypothesis that mental abilities are unrelated to resting brain metabolism unless both functions are influenced by disease.     

A Mixed Model to Disentangle Variance and Serial Autocorrelation in Affective Instability Using Ecological Momentary Assessment Data

Affective instability, the tendency to experience emotions that fluctuate frequently and intensively over time, is a core feature of several mental disorders including borderline personality disorder. Currently, affect is often measured with Ecological Momentary Assessment protocols, which yield the possibility to quantify the instability of affect over time. A number of linear mixed models are proposed to examine (diagnostic) group differences in affective instability. The models contribute to the existing literature by estimating simultaneously both the variance and serial dependency component of affective instability when observations are unequally spaced in time with the serial autocorrelation (or emotional inertia) declining as a function of the time interval between observations. In addition, the models can eliminate systematic trends, take between subject differences into account and test for (diagnostic) group differences in serial autocorrelation, short-term as well as long-term affective variability. The usefulness of the models is illustrated in a study on diagnostic group differences in affective instability in the domain of eating disorders. Limitations of the model are that they pertain to group (and not individual) differences and do not focus explicitly on circadian rhythms or cycles in affect.