The Rorschach and structured tests of perception as indices of intellectual development in mentally retarded and nonretarded children

In a study of the developmental significance of certain perceptual activities, the Rorschach and four structured tests of perception were administered to five groups of children at various CA, MA, and IQ levels. All three Rorschach measures were significantly related to MA, as were all four of the structured tests. The Childrens' Embedded Figures Test was the best predictor of MA; it accounted for 52% of the variance, while the six remaining measures yielded nonsignificant increments to a multiple regression equation. In a factor analysis the four structured tests loaded on one factor (51% of total variance), while the three Rorschach variables loaded on a second (17%); MA loaded on both (.669 and .447, respectively). In an additional finding, Zigler's “developmental” hypothesis that level of development and not IQ determines cognitive competence, received partial support from 13 of 14 statistical tests.     

Role-taking skills in intellectually-gifted third-grade children

Very bright (mean IQ = 152) third graders were compared with both average IQ third graders and average IQ sixth graders on perceptual, cognitive, and affective perspective-taking tasks. The role-taking skills of the intellectually-gifted children were more similar to those of their mental age mates than to those of their chronological age mates on both the cognitive and affective tasks. On the perceptual task, the bright children's performance fell between that of the two comparison groups. The results provide evidence that gifted children are advanced in thinking about both the social and physical worlds, and have implications for educational issues such as curriculum development and acceleration vs. enrichment.     

A parent-offspring adoption study of cognitive abilities in early childhood

Do cognitive abilities in early childhood relate genetically and/or environmentally to isomorphic abilities in adulthood? Are specific cognitive abilities diffentiated in early childhood in terms of their prediction of adult cognitive abilities? The present study, the first behavioral genetic analysis of specific cognitive abilities in early childhood, explored these questions using parent-offspring data for 186 adopted children and 151 nonadopted children tested in the longitudinal Colorado Adoption Project at 3 years of age and 162 adopted children and 138 nonadopted children tested at 4 years. The children's Stanford-Binet IQ and scores for four specific cognitive abilities (verbal, spatial, perceptual speed, and memory) were correlated with corresponding measures for their parents—the biological and adoptive parents of the adopted children and the natural parents of the nonadopted children. Significant correlations were found between biological mothers' IQ and the IQ of their adopted away offspring at 3 and 4 years of age, suggesting genetic influence for IQ. However, specific cognitive abilities yielded no significant correlations between biological mothers and their adopted-away offspring. These results suggest that substantial genetic continuity exists for IQ from early childhood to adulthood, but not for specific cognitive abilities.     

Gender and its contribution to the prediction of cognitive abilities at 5 years

Gender-related differences in the prediction of five year-olds' cognitive abilities from measures of distal environment, proximal environment and infant test scores were examined in a random sample of 93 boys and 90 girls. Distal environmental data included maternal IQ, maternal and paternal education. Proximal environmental data included two variables derived from the Home Screening Questionnaire: the Home Questions and the Toy Checklist. The Bayley MDI was administered at age 13 months, whereas WPPSI-R was used as cognitive outcome measure at age 5 years. The relationship between paternal education and child IQ, and between proximal environmental variables and child IQ was significantly stronger for boys than for girls. The associations between proximal environment and IQ in boys, were accounted for by the distal environmental variables. Bayley MDI correlated significantly higher with girls' IQ compared to boys' IQ. Findings are discussed in terms of parental gender-differentiated socialization processes.     

Differential construct validity of intelligence as popularly measured: Correlations of age with raw scores on the WISC-R for Blacks Whites, males, and females

Raw scores on the 12 WISC-R subtests and the verbal, performance, and full scale IQ scales were correlated with age in years separately for 938 White males, 137 Black males, 927 White females, and 153 Black females. Highest and lowest correlations from the four groups were then contrasted for each of the 15 WISC-R variables to determine whether the magnitude of the relationship between age and performance on current tests of intelligence is constant across race and sex. Regression coefficients between age and raw scores were also contrasted across groups. None of the 15 comparisons of corrections yielded differences that were statistically significant. Regression coefficients differed only with respect to the Full Scale IQ, showing smaller incremental changes with age for Black males than for other groups. The results indicated that the relationship between age and intelligence test performance is relatively constant across race and sex and supports the construct validity of the WISC-R as a measure of children's intelligence for Blacks, Whites, males, and females, though some evidence was found to indicate slower development of “g” in Black males as compared to the other groups.     

Graphometric variables of one's signature: II. Correlations with measures of perception, cognitive function, and personality

This study focused on interrelations between graphometric variables of the signature and measures of perception, cognitive function, and personality. Signatures from a sample of psychiatric and somatic outpatients (N = 205) were analyzed into 23 graphometric variables and correlated with tests of IQ, cognitive and perceptual function, and personality. The results of a factor analysis of the graphometric, perceptual, and cognitive variables were very much like results from previous studies. Relationships with the graphometric variables can be described in five categories of intelligence, psychomotility, flexibility and speed of closure, and personality. Graphometric signs of Extraversion and Neuroticism were identified, and the two capitals in the signature indicated different psychological meanings. Measurements of the signature offered important personality information.     

弱智儿童视觉图形辨认的实验研究

本研究探讨了不同智商水平的弱智儿童的视觉图形辨认能力的差异,并与同龄正常儿童作了比较。结果表明,智商在31-51,平均智商为41.6,均龄为11.7岁的弱智儿童,在图形以0.05秒速度的呈现条件下,平均辨认正确率为21.4%;在以0.01秒速度呈现的条件下,平均正确率为20.7%。智商在55-75,平均智商为62.0,均龄为10.2岁的弱智儿童,图形以0.05秒速度呈现时,平均辨认正确率为48.5%;在以0.01秒速度呈现时,平均正确率为45.0%。与同均龄的正常儿童比较,无论在哪一种呈现速度条件下,对图形辨认正确率均明显低于正常儿童。     

成人认知功能的发展与老化：一项控制同辈效应的横断研究

为探索成人认知功能的发展与认知老化轨迹,基于中华成人智力量表常模样本数据,统计控制教育水平和职业构成以部分消除同辈效应,考察智商和智力指数的年龄趋势。结果晶体智力指数(CI)在25~44岁间增加0.69分后缓慢递减,高低差值3.3分;注意记忆指数(AMI)在25~44岁间共减少3.3分,45岁后各组均数以3分左右的速度递减。流体智力指数(FI)和智商的年龄差异模式与AMI类似,幅度缩减。提示中国成人晶体智力在74岁前比较稳定,没有明显老化,流体智力和注意记忆能力可能在45岁开始明显线性老化。     

人类颞叶皮层与视、听信息加工:Ⅰ、神经心理模型和左颞叶癫痫病人的认知功能

对37名被试的18项神经心理测验结果进行因素分析后得到4个主要因素:知觉组织、感觉注意、记忆和知觉运动。对比组t 考验发现左颞叶瘢痫病人的节律跟随和说话人识别测验得分明显低于普通外科病人,说明左颞叶癫痫病可能影响听觉运动和非言语复杂听觉信息加工的能力。     

Changes in naming ability with age

We administered to 80 optimally healthy subjects, 30-80 years old, the Boston Naming Test, a test of confrontation naming. Results indicated that naming ability remains fairly stable across the adult life span until individuals are in their 70s, at which point there is a significant decline in performance (p less than or equal to .0001). Semantic errors (i.e., circumlocutions, semantically related associates, and nominalizations) and perceptual errors increase with age. Lexical errors (i.e., phonologically related real words and phonologically related nonwords) do not increase with age. Results of multiple regressions that included other neuropsychological variables indicate that estimated IQ, but not new learning ability, predicts a subject's naming score.     

Cognitive processes in children's reading and attention: The role of working memory,divided attention,and response inhibition

Children experiencing attention difficulties have documented cognitive deficits in working memory (WM), response inhibition and dual tasks. Recent evidence suggests however that these same cognitive processes are also closely associated with reading acquisition. This paper therefore explores whether these variables predicted attention difficulties or reading among 123 children with and without significant attention problems sampled from the school population. Children were screened using current WM and attention task measures. Three factors explained variance in WM and attention tasks. Response inhibition tasks loaded mainly with central executive measures, but a dual processing task loaded with the visual‐spatial WM measures. Phonological loop measures loaded independently of attention measures. After controls for age, IQ and attention‐group membership, phonological loop and ‘central processing’ measures both predicted reading ability. A ‘visual memory/dual‐task’ factor predicted attention group membership after controls for age, IQ and reading ability. Results thus suggest that some of the processes previously assumed to be predictive of attention problems may reflect processes involved in reading acquisition. Visual memory and dual‐task functioning are, however, purer indices of cognitive difficulty in children experiencing attention problems.     

Early indicators of personality traits viewed retrospectively

A review of early test data and school, environmental, and sociometric information on 46 Ss from the Austin Longitudinal Research Project suggests that certain indicators are useful as precursors of personal adjustment nine years later. The following seven proved to be significant: (1) Number of Koppitz's Emotional Indicators in the Human Figure Drawing, (2) Sociometric rejection by peers in first grade, (3) Father's occupational, (4) Holtzman Inkblot Technique (HIT) Pathognomic Verbalization, (5) HIT Anxiety, (6) HIT Hostility, and (7) HIT Form Appropriateness. Strong trends in the expected directions were noted on the Goodenough-Harris HFD score, WISC Full Scale IQ, and positive sociometric rating by first-grade peers.     

Genetic and environmental transactions underlying educational attainment

This report used a population-representative longitudinal twin study with two birth cohorts to explore the association between intelligence and education by understanding how genetic and environmental influences on intelligence moderate genetic and environmental influences on school grades and educational attainment. Nonshared environmental influences on grades were strong when IQ was low, but decreased across the range of IQ. Shared environmental influences common to age 24 educational attainment and age 17 IQ were strong when IQ was low, but genetic influences common to IQ and education were strong when IQ was high. These results suggest that the causal mechanisms linking educational variables with intelligence differ for people with different levels of intelligence.     

Classification and perceptual development: Exploring issues about integrality and differential sensitivity

Pre- and elementary-school children, 4 and 11 years of age, were given a classification task similar to those given in research testing an account that posits a developmental shift from integral to separable perception. The development of perceptual sensitivity and its role in determining similarity and dimensional classifications was assessed with the variables of predisposed and distinctiveness-based salience. The results indicated that the level of perceptual sensitivity to the dimensions in the task determined the frequency of types of classifications. Children in both age groups made both kinds of critical classifications as a function of predisposed and distinctiveness-based salience.     

Effect of snap and thoughtful judgments on person impressions

Judgment type (snap and thoughtful) and valence of stimulus person (from likable to unlikable) were varied as within-subjects factors in four studies to test whether situational and motivational variables (as opposed to the perceptual variable of unit formation) would interfere with integrative activity in forming first impressions. If such variables are influential, both the averaging and meaning shift formulations would expect that snap judgments should produce less extreme impression ratings than more thoughtful judgments. None of three indices of integrative activity (impression ratings, component ratings and variance of impression ratings) detected a difference between the snap and thoughtful response conditions for early and late judgments in a series, for moderate or extreme traits, or for between- or within-subjects designs. These findings suggest that certain boundary conditions need to be placed on the assumptions underlying the averaging and meaning shift formulations.     

On the relation between demographic variables and neuropsychological test performance

This paper reports a study of the relation between demographic variables and neuropsychological test performance in a sample of 141 normal subjects. A preliminary analysis demonstrated the importance of age, educational level, sex, and Verbal IQ for the prediction of neuropsychological test performance. The main study is a detailed analysis of the relation between these four variables and neuropsychological test performance. The results are presented in the form of standardized regression coefficients and are discussed in relation to the problem of predicting expected premorbid performance in neuropsychological tests.     

Attachment Disruptions,IQ, and PTSD in African American Adolescents: A Traumatology Perspective

Attachment disruptions, other traumas, posttraumatic stress disorder (PTSD), and intelligence quotient (IQ) were measured in a sample of 181 African American adolescents. Path analysis was utilized to test the effects of different types of attachment disruptions on IQ and PTSD. Findings supported that mother and father abandonments and being in foster care are associated with decreased perceptual reasoning, processing speed, and working memory, and increased discrepancy between perceptual and verbal toward decreased perceptual reasoning. Such suppression and discrepancy contribute to poor academic achievement. Results validated the traumatology perspective on attachment disruptions as traumas that are associated with PTSD, suppression of most IQ potentials, and with potential brain hemispheric desynchronization. The ramifications of these results for helping African American adolescents are discussed.     

The Relationship Between Individual Inputs, Perceptions, and Multidimensional Pay Satisfaction

Within the framework of revised discrepancy theory, this study examines the relationships of individual inputs and perceptual variables on four facets of pay satisfaction among 301 university faculty members. Statistically controlling for common method variance, actual pay exerted a strong direct effect on such satisfaction. While individual inputs were differentially related to the four measures of pay satisfaction, the perceptual variables (performance, pay fairness, contingent pay, commitment, and job satisfaction) were directly related to at least one dimension of pay satisfaction but did not generally interact with actual pay. The findings suggest perceptual variables affect pay judgments directly, while individual variables may directly or indirectly be related to aspects of pay satisfaction.     

III. WISC-R scatter indices: Useful information for differential diagnosis?

This study analyzed the WISC-R verbal-performance, full scale IQ, verbal IQ, and performance IQ scatter indices of 101 verified special education students. The results indicated that none of these measures discriminated among emotionally disturbed, learning disabled, minimally brain injured, and educable mentally retarded children. These scatter indices were also compared with analogous data collected from a nationwide, representative sample of normal children (Kaufman, 1976a, 1976b). Statistically significant differences were obtained between the two groups on verbal-performance, full scale IQ, and performance IQ scatter dimensions. Further analyses revealed, however, that 40% of the normal children exhibited as much or more scatter than the average special education student on each of these three scatter indices. There were no significant differences between the two groups on the verbal IQ scatter index. The results are discussed in terms of the limited utility of WISC-R scatter indices for the purpose of differential diagnosis.     

Knowing how to look predicts the ability to draw realistically

Some young children are able to create stunningly realistic drawings resembling those of adult artists. What perceptual abilities underlie this talent? This study examined two candidate skills on which adult artists excel: the ability to segment a complex form mentally (measured by the Block Design Task) and the ability to see hidden forms (measured by the Group Embedded Figures Test). Sixty‐seven 6‐ to 13‐year‐olds with a wide range of drawing abilities completed these tasks as well as an IQ test and an observational drawing task. While children who scored high on drawing realism outperformed those who scored low in drawing realism on both perceptual tasks, only detection of embedded figures predicted drawing realism. This occurred independently of age, gender, years of training, and verbal and non‐verbal IQ. There are certainly many contributors to this complex ability, but one component appears to be the tendency to see things more as they really are and thereby recognize the continuous contour of an object despite interference from other overlapping objects.