Racial differences in intelligence: The importance of the executive system

The race-IQ controversy arose at a time when psychometric views of intelligence dominated. Little attention was paid to more process-oriented models in spite of the fact they provide alternative perspectives on the causes of individual differences in problem-solving. We hypothesized that much of the IQ spread commonly observed between black and white children can be attributed to differences in components of their executive systems, including the knowledge base, control processes, and metacognitive states. To test this possibility, black and white children who differed significantly on fluid and crystallized intelligence were tested on multiple tasks reflecting components of the executive systems as well as on perceptual efficiency tasks. Striking group differences were observed in metamemory, stragegy use, and general knowledge, but few reliable differences were found in perceptual efficiency. Regression analyses showed that different factors predicted fluid and crystallized intelligence, with metamemory predicting the latter but not the former. An implication of these findings has potential educational significance: training directed at executive skills, introduce at an early age, might elevate learning and problem-solving skills in black children, thereby reducing racial differences in crystallized intelligence.     

The effects of semantic integration training on memory for pictograph sentences

The effectiveness of training a semantic integration strategy for recall of pictograph sequences, and the generalization of the strategy to a related oral sentence task were examined in 60 kindergarten prereaders. Semantic integration training consisted of three individual sessions in which the child was instructed to treat the sequence as a sentence and to act out the pictograph sentences using toys in order to facilitate recall. Repetition and no-practice control groups were included. Pictograph sentence memory post-tests immediately following and 2 weeks after training indicated that semantic integration training substantially improved recall for pictograph sequences, an improvement that was unrelated to the child's initial memory performance or subsequent post-training awareness of the strategy. In addition, the training resulted in better performance on a generalization test of oral sentence synthesis. These findings support a strategy-based conceptualization of individual differences in the semantic processing of written materials.     

Functional similarity and interpersonal attraction

A pair of related experiments examined the relationship of functional similarity (i.e., the degree of similarity between two interactants in assessing mutually known others on personal construct dimensions) to interpersonal attraction. In Experiment I, 10 previously unacquainted college students of both sexes participated in 10 hours of dyadic disclosure exercises over a 5-week period. As predicted, members of high functional similarity dyads evidenced greater attraction to one another than did members of low functional similarity dyads. Experiment II investigated the relationship of functional similarity to level of acquaintance (i.e., friends, nominals) and type of assessment (i.e., physical, interactional, psychological) in a 2 × 3 factorial design. As hypothesized, “friendship” pairs of male undergraduates displayed greater functional similarity than did “nominal” pairs from the same population, particularly at the deeper level of “psychological” assessment. Results are discussed in relation to classical conditioning (D. Byrne, In L. Berkowitz (Ed.), Advances in experimental social psychology, Vol. 4. New York. Academic Press, 1969), affect-reinforcement (G. L. Clore, In S. W. Duck (Ed.), Theory and practice in interpersonal attraction. New York/London: Academic Press, 1977) and information processing ( I. Ajzen, In S. Duck (Ed.), Theory and practice in interpersonal attraction, New York/London: Academic Press, 1977) models of interpersonal attraction, and are interpreted as supporting and extending (S. Duck's Theory and practice in interpersonal attraction, New York/London: Academic Press, 1977) filtering theory of friendship formation.     

The influence of information redundancy upon the use of traits and persons as organizing categories

The following question is addressed: How do multiple, simultaneously present cognitive structures influence the representation and recall of social information? In an empirical study examining both free and cued recall, we found the variable information redundancy to influence both the organization and accuracy of subjects' recollections of trait-related behaviors. Redundancy was defined in terms of the degree of person/trait overlap in a social information ensemble. Some evidence indicated that this effect is attributable to an increase in the discriminability of the organizational structures during encoding. The implications of these findings for understanding the formation of integrated cognitive representations of individuals and the spontaneous use of traits in social information processing are discussed.     

A multidimensional scaling analysis of 16 complex sounds

The INDSCAL multidimensional scaling model was used to investigate the distinctive features involved in the perception of 16 complex nonspeech sounds. The signals differed along four physical dimensions: fundamental frequency, waveform, formant frequency, and number of formants. Scaling results indicated that subjects’ similarity ratings could be accounted for by three psychological or perceptual dimensions. A statistically reliable correspondence was observed between these perceptual dimensions and the physical characteristics of fundamental frequency, waveform, and a combination of the two formant parameters. These results were further explored with Johnson’s (1967) hierarchical clustering analysis. Large differences in featural saliency occurred in the group data with fundamental accounting for more variability than the remaining dimensions. Further analysis of individual subject data revealed large individual differences in featural saliency. These differences were related to past musical experience of the subject and to earlier findings using similar signals. It was concluded that (1) the INDSCAL model provides a useful method for the analysis of auditory perception in the nonspeech mode, and (2) featural saliency in such sounds is likely to be determined by an unspecified attentional mechanism.     

Child judgments of sentences varying in grammatical complexity

This study is another contribution to the development of a satisfactory child version of the linguistic task of judging grammaticality. With a nondifferentially reinforced forced-choice procedure, it was found that responses of 24 5- and 24 7-yr-old children did vary as a function of the grammatical complexity of stimulus sentences. The children judged sentence stimuli of two types (negatives and wh-word questions) each having three levels of grammatical complexity (two primitive and one well-formed). After each stimulus presentation, the subject pointed to the adult or the child in a photograph, depending on who was judged to have produced that utterance. Performance of the two age groups did not differ for the question stimuli, for which subjects pointed to the adult more frequently as the grammatical complexity of wh-word questions increased. In response to the negative sentences, the older group attributed more well-formed stimuli to the adult than primitive ones. While the younger group pointed to the adult more frequently for well-formed negatives than for the middle level negatives, they made more adult responses than expected to the least complex negatives. It was concluded that, with this procedure, 5- and 7-yr-olds demonstrate ability to distinguish grammatically well-formed from primitive sentences. Procedural improvements for future research may allow children this age and younger to demonstrate more adult-like discrimination between a variety of primitive and well-formed sentences.     

Maintenance of children's rehearsal strategies: Effects of amount of training and strategy form

Fifty third- and fourth-grade children, assigned to groups varying in Amount (1 or 2 sessions) and Type (cumulative-cluster or cluster) of strategy training or to a control condition, participated in three free recall sessions, two training sessions with blocked lists of common words and a maintenance session with a 50-states list blocked by geographical regions. During strategy training and maintenance, the cumulative-cluster groups recalled more than the cluster and control groups. Amount of training significantly influenced degree of strategy maintenance, but only in the cumulative-cluster strategy. Strategy form was highly correlated with recall in the cumulative-cluster condition, while total study time (effort) was related to recall only in conditions where strategy instructions were not given. The form of the strategy during training predicted transfer form and recall. 100% of the children who received extended training and demonstrated good strategy form during acquisition sessions successfully transferred the strategy to the geography task.     

Elkind on egocentrism

The purpose of this paper is to respond to D. Elkind's (1985, Developmental Review, 5, 218–226) reply to D. Lapsley and M. Murphy's (1985, Developmental Review, 5, 201–217) critique of the adolescent egocentrism theory. After a reprise of the issues in contention, we address the problem of theoretical consistency and self-other differentiation in Dr. Elkind's (1967, Child Development, 38, 1025–1034) theory. The role of formal operations in the Lapsley and Murphy (1985) account of the imaginary audience and personal fable is revised, and the empirical support for Elkind's theory is reviewed. We conclude that there are good conceptual and empirical grounds for doubting the major assumptions of the adolescent egocentrism theory, and that the Lapsley and Murphy (1985) framework has promise in suggesting theoretical integration with other approaches to the self.     

Immediate and delayed effects of victim suffering on the attacker's aggression

On the first day of a two-day experiment, male undergraduates were either angered or not, and they were given either high, low, or no metered pain feedback after each shock they supposedly delivered to their previous evaluator for his errors on a learning task. After the learning task the subjects made a number of ratings, including how much they had enjoyed this first session. On the second day, all subjects were simply required to administer shocks to a different person for his mistakes on the same learning task. The angered subjects were more punitive on both days toward both learners than the nonangered men. On the first day the angered men also increased the intensity of the shocks they delivered over trial blocks. Most interestingly, the angered men showed more enjoyment of the first session of the experiment as their victim's pain increased, and this enjoyment rating was related to the angered subjects' level of aggression on the second day of the experiment when they punished an “innocent” victim. The results were interpreted as consistent with the hypothesized reinforcement process which essentially states that signs and/or knowledge of the victim's suffering can reinforce impulsive or angry aggressive behavior.     

Metamemory and the transfer of an interrogative strategy by EMR children

EMR children were taught to produce an interrogative strategy as an aid to paired-associate learning. Interrogative training was spread over four sessions with experimenter guidance gradually faded; training was followed by tests of long-term retention for the trained items, strategy maintenance, and generalization. Metamemory was assessed prior to training and following generalization. Analysis of recall demonstrated successful maintenance and generalization of the interrogative strategy; the quality of elaborations produced by the trained children predicted recall accuracy. Importantly, metamemory pretest measures for the interrogative trained children were related to strategy use at generalization. Metamemory posttest reliably predicted recall during training, maintenance, and generalization sessions and strategy use at maintenance. Interrogative training did not noticeably improve general aspects of metamemorial knowledge.     

Another look at the theoretical assumptions of adolescent egocentrism

We attempt in this paper to reevaluate the theoretical assumptions of D. Elkind's theory of adolescent egocentrism Child Development, 38, 1025–1034). We argue that the construct is not well placed in the ontogenetic context of Piagetian logical development, and that the theory cannot account for stage transition or the appearance of the imaginary audience (IA) and personal fable (PF) components. We argue that the IA and PF constructions are better understood as problems in interpersonal understanding. These components are reinterpreted in terms of stage sequence that describes the ontogenesis of interpersonal understanding. The advantages of this model are highlighted.     

Body weight and body image among college women: perception, cognition, and affect

This study examined the relations between body weight and multiple parameters of body image in a nonclinical sample. Thirty-six female undergraduate students with stable body weights served as subjects; 12 were underweight, 12 were normal weight, and 12 were overweight, as determined using recent normative tables. Each subject responded to a general weight information questionnaire and to the Body-Self Relations Questionnaire, a standardized instrument assessing affective, cognitive, and behavioral components of appearance-related body image. A newly developed apparatus and procedure for estimating body size, the Body Image Detection Device, was utilized for perceptual and cognitive measures of body image. Each subject estimated and also subjectively appraised the width of her own body at five points and that of a realistic female mannequin. A caliper was used to record actual widths, and a standard laboratory scale and rule measured weight and height. The general finding of the study was that the perceptual, affective, and cognitive components of body image differed as a function of body weight, but the nature of the differences varied with the measure employed. The pattern of results for the perceptual measure suggest a cautious view of its reliability and validity. The multidimensional approach of our study, in marked contrast to earlier fractionated studies, offers a more integrated perspective on body image and provides new directions for future research.     

Body Weight and Body Image Among College Women: Perception,Cognition, and Affect

This study examined the relations between body weight and multiple parameters of body image in a nonclinical sample. Thirty-six female undergraduate students with stable body weights served as subjects; 12 were underweight, 12 were normal weight, and 12 were overweight, as determined using recent normative tables. Each subject responded to a general weight information questionnaire and to the BodySelf Relations Questionnaire, a standardized instrument assessing affective, cognitive, and behavioral components of appearance-related body image. A newly developed apparatus and procedure for estimating body size, the Body Image Detection Device, was utilized for perceptual and cognitive measures of body image. Each subject estimated and also subjectively appraised the width of her own body at five points and that of a realistic female mannequin. A caliper was used to record actual widths, and a standard laboratory scale and rule measured weight and height. The general finding of the study was that the perceptual, affective, and cognitive components of body image differed as a function of body weight, but the nature of the differences varied with the measure employed. The pattern of results for the perceptual measure suggest a cautious view of its reliability and validity. The multidimensional approach of our study, in marked contrast to earlier fractionated studies, offers a more integrated perspective on body image and provides new directions for future research.     

Children's metacognition: Exploring relations among knowledge,process, and motivational variables

Following a metamemory pretest, 60 first and third grade children (6 and 8 years of age, respectively) were divided into three treatment groups which received task-specific strategy instructions appropriate for three memory problems, general metacognitive information about subordinate and superordinate processing, or both strategy and metacognitive training. Maintenance and generalization versions of the memory tasks were given, followed by an attributional assessment of children's perceptions of the causes for specific success and failure outcomes. Post-training scores on the memory tasks showed that strategy training was highly successful. Metacognitive training appeared to have no effect on the metameory or strategy scores with one exception: metamemory and strategy use on the generalization task were significantly correlated only for children who received both metacognitive and strategy training. Apparently, children who were initially high in metamemory skills profited more from the comprehensive training package, using new metacognitive insights to aid the generalization of acquired strategies to the transfer tasks. Among strategy-trained children those who attributed success to effort were both more strategic and higher in metamemory than those who attributed task outcomes to noncontrollable factors such as ability or task characteristics. Results were discussed in terms of the interactive nature of knowledge, process, and motivational variables as determinants of strategy transfer.     

Development and validation of a self-report measure of emotional intelligence as a multidimensional trait domain

Psychometric review of 33 peer-reviewed studies of six self-report emotional intelligence (EI) measures supports a multidimensional conceptualization of EI. The nature and number of EI facets, however, and their distinctiveness from more established trait domains is unclear. Building on earlier efforts, three studies were undertaken (Ns = 138, 163, 152) to develop self-report measures of 10 facets of EI proposed by Salovey and Mayer (1990). Results support the reliability (internal consistency, test-retest) and validity (content, criterion, construct, structural) of the proposed scales and their distinctiveness among themselves and with respect to more established trait domains (e.g., personality). Specifically, three satisfaction and four cross-cultural adaptability facets were predicted uniquely by 9 of the 10 proposed subscales, controlling for social desirability, the Big Five, positive and negative affect, and self-monitoring. All told, results confirm that trait-EI can be measured using self-report and conceptualized as a distinct multidimensional domain.     

儿童青少年时期加工速度和执行功能在流体智力发展中的作用

以7~15岁儿童青少年为研究对象,考察加工速度和执行功能对流体智力的影响。研究结果表明,随着年龄的增长,感觉运动加工速度、知觉加工速度对流体智力从具有直接影响到只通过执行功能中的记忆更新成分产生间接影响,但这种影响存在年龄间的差异。在童年中期（7~9岁）,知觉加工速度对流体智力不仅具有直接的预测作用,还通过记忆更新对其产生间接的影响。童年晚期（10~12岁）,感觉运动加工速度和知觉加工速度不再对流体智力具有直接预测作用,都是通过记忆更新和抑制/转换合成成分间接对流体智力起作用。青春期（13~15岁）,知觉加工速度对流体智力只通过记忆更新产生间接影响。     

Placing inspection time, reaction time, and perceptual speed in the broader context of cognitive ability: The VPR model in the Lothian Birth Cohort 1936

The idea that information processing speed is related to cognitive ability has a long history. Much evidence has been amassed in its support, with respect to both individual differences in general intelligence and developmental trajectories. Two so-called elementary cognitive tasks, reaction time and inspection time, have been used to compile this evidence, but most studies have used either one or the other. Relations between speed and fluid intelligence have tended to be stronger than those between speed and crystallized intelligence, but studies testing this have confounded verbal abilities with crystallized intelligence and spatial/perceptual abilities with fluid intelligence. Questions have also been raised regarding whether speed contributes directly to general intelligence or to more specific cognitive abilities to which general intelligence also contributes. We used 18 ability and speed measures in the Lothian Birth Cohort 1936, assessed at approximately age 70, to construct alternative versions of the Verbal-Perceptual-Image Rotation (Johnson & Bouchard, 2005a) model of cognitive ability to test different hypotheses regarding these issues. Though differences in the extents to which our models fit the data were relatively small, they suggested that reaction and inspection time tasks were comparable indicators of information processing speed with respect to general intelligence, that verbal and spatial abilities were similarly related to information processing speed, and that spatial, verbal, and perceptual speed abilities were more directly related to information processing speed than was general intelligence. We discuss the theoretical implications of these results.     

The multidimensional analysis of asymmetries in alphabetic confusion matrices: Evidence for global-to-local and local-to-global processing

This study examined the ability of an asymmetric multidimensional scaling program (DEDICOM) to reveal information about letter-perception processes. To demonstrate its potential, we applied it to the controversy concerning local-to-global versus global-to-local letter perception. These two theories lead to different predictions about stimulus confusion asymmetries. Since DEDICOM is capable of recovering the structure of asymmetric or directional patterns, it should reveal whether a stimulus-response confusion matrix contains patterns of asymmetry more consistent with one or the other perceptual theory. This was tested using two data sets. The first (from Lupker, 1979) revealed an additive hierarchy of asymmetry strongly consistent with global-tolocal processing, although unexpected additional structure and reliable anomalies indicated the need for a more refined theoretical account. The second (a full alphabetic confusion matrix combining data from Gilmore et al., 1979; Loomis, 1982; and Towasend, 1971) revealed five distinct patterns, each consisting of transformations attributable to the failure to detect specific local letter features. This solution strengthened support for local-to-global processing, in sharp contrast to the first analysis. Possible reasons for this divergence are discussed, including differences in the stimuli, exposure durations, and a hypothetical two-stage process of perception. Despite their differences, both solutions demonstrated how asymmetric scaling can reveal structure in asymmetries, which is relevant to perceptual theory and which would have been difficult to recover by other means.     

Nonverbal signals speak up: Association between perceptual nonverbal dominance and emotional intelligence

Emotional communication uses verbal and nonverbal means. In case of conflicting signals, nonverbal information is assumed to have a stronger impact. It is unclear, however, whether perceptual nonverbal dominance varies between individuals and whether it is linked to emotional intelligence. Using audiovisual stimulus material comprising verbal and nonverbal emotional cues that were varied independently, perceptual nonverbal dominance profiles and their relations to emotional intelligence were examined. Nonverbal dominance was found in every participant, ranging from 55 to 100%. Moreover, emotional intelligence, particularly the ability to understand emotions, correlated positively with nonverbal dominance. Furthermore, higher overall emotional intelligence as well as a higher ability to understand emotions were linked to smaller reaction time differences between emotionally incongruent and congruent stimuli. The association between perceptual nonverbal dominance and emotional intelligence, and more specifically the ability to understand emotions, might reflect an adaptive process driven by the experience of higher authenticity in nonverbal cues.