The relationship between Eysenck's major personality dimensions and simultaneous and sequential processing in children

The present study reexamined Eysenck's hypothesis that intelligence and personality are uncorrelated. Intelligence was measured with the Kaufman Assessment Battery for Children, yielding scores for simultaneous and sequential processing and achievement, and the Woodcock-Johnson Brief Scale. Personality was assessed with the Junior Eysenck Personality Questionnaire. Ss were 105 children, ages 8$\text{1}\text{2}$10$\text{1}\text{2}$yr. Although a process as well as a product-oriented intelligence test was employed, the correlational and discriminant analyses supported Eysenck's original hypothesis.     

Psychometric characteristics of Chicano and non-Hispanic White children's performance on the preschool inventory

Two studies are reported that independently examined the psychometric characteristics of children's performance on the Preschool Inventory. The sample in Study I consisted of 100 Chicano children tested longitudinally at ages $\text{3}\text{1}\text{2}$ and 4 years. The sample in Study II consisted of 200 Chicano and non-Hispanic White children matched on mothers' schooling level in a cross-sectional design involving two age levels—prekindergarten-age children and children enrolled in kindergarten. Comparisons were made by ethnic group, sex, and age level with regard to item characteristics, internal-consistency reliabilities, test—retest stability, standard errors of measurement, validity, and performance level. Comparisons also were made between the psychometric characteristics of the Chicano children's performance on the Preschool Inventory and the psychometric characteristics reportedly by other investigators for the same instrument administered to children of other ethnic, socioeconomic, and sociolinguistic backgrounds. The results provide impressive evidence of the Preschool Inventory's psychometric strengths and demonstrate that the examined psychometric characteristics of the Preschool Inventory are as exemplary when the test is administered to Chicano children as they are exemplary when it is administered to children of other ethnic backgrounds. Certain limitations of the Preschool Inventory are identified. Recommendations are made regarding possible avenues for future test development efforts.     

Cultural differences on WISC-R verbal items

The item difficulty patterns of four groups of nonreferred, average children— Anglos, Blacks, Chicanos and Bermudians—were compared on each of the verbal subtests of the Wechsler Intelligence Scale for Children-Revised. The analysis was done for $\text{7}\text{1}\text{2}$ years old and $\text{10}\text{1}\text{2}$ year olds separately. Although this procedure identified a small number of items differentially difficult for one group of children or another, the item difficulty curves for the four groups were remarkably parallel, considering the differences in the children's cultures.     

A follow-up developmental study of hypothesis behavior among mentally retarded and nonretarded children

To clarify the roles of IQ and mental age (MA) in hypothesis behavior, MA-matched subjects at three levels of IQ (70, 100, and 130) and three levels of MA ($\text{5}\text{1}\text{2}\text{, 7}\text{1}\text{2}\text{,}\text{and}\text{9}\text{1}\text{2}\text{years}$) received blank-trial discrimination learning problems using procedures designed to discourage position-oriented responding. With position responding discouraged, earlier findings were contradicted in that no hypothesis measure showed a main effect of IQ. This suggest that previously reported IQ group differences in hypothesis behavior may not reflect cognitive deficits inherently linked to low IQ, but instead may reflect the influence of specific methodological factors. The finding and interpretation are consistent with Zigler's (American Journal of Mental Deficiency, 1969, 73, 536–556) “developmental” theory of retardation and inconsistent with the general “difference” position. In additional findings, the predictions that subjects at all three MA levels would use hypotheses, and that retarded children from special-education classes would use hypotheses more often than retarded children “mainstreamed” in classes for the nonretarded were confirmed.     

Long-term predictive validity of the WPPSI: An 11-year follow-up study

As part of a longitudinal study, a control group of 85 children were tested on the WPPSI at 5$\text{1}\text{2}$ years and the WISC-R at 16$\text{1}\text{2}$ years. Educational attainment was also assessed in adolescence. Data are presented illustrating the long-term predictive validity of the WPPSI. The Full Scale IQs on the two tests intercorrelated +0.86.     

Concurrent and predictive validity of the Kaufman Assessment Battery for Children with a Navajo sample

The aim of this investigation was to examine the mean scores and predictive validity coefficients obtained from the Wechsler Intelligence Scale for Children-Revised (WISC-R), the Kaufman Assessment Battery for Children (K-ABC), and the Peabody Individual Achievement Test (PIAT). The K-ABC and the WISC-R were administered 1 week apart in counterbalanced order to 35 Navajo children aged 6–12$\text{1}\text{2}$ years (mean 8–9 years), followed 10$\text{1}\text{2}$ months later by administration of the PIAT. The K-ABC yielded an overall mean of 95.0, which is significantly higher than the WISC-R Full Scale IQ mean of 86.9. All WISC-R and K-ABC global scores correlated significantly except the WISC-R Verbal and K-ABC Nonverbal scales. The WISC-R Verbal and Full Scale IQs and all five K-ABC scales correlated significantly with the PIAT Total Test standard scores. However, the K-ABC Achievement scale correlated significantly higher with the PIAT Total Test than with the WISC-R Verbal and Full Scale IQs. The implications of these findings are discussed.     

The modification of racial bias in preschool children

In previous studies using the Preschool Racial Attitude Measure (PRAM) and other measurement procedures, preschool children have displayed a tendency to evaluate light-skinned (Euro-American) persons more positively than dark-skinned (Afro-American) persons. Both Euro- and Afro-American children demonstrate this pro-Euro/anti-Afro ($\text{E+}\text{A?}$) bias, though it is less pronounced among Afro children.Two experiments designed to modify this racial bias are reported. The first study involved 39 Euro- and Afro-American preschool children and employed operant learning principles to modify $\text{E+}\text{A?}$ bias via a teaching machine procedure which provided reinforcement for pro-Afro/anti-Euro responses. Following training, the children showed a reduction in $\text{E+}\text{A?}$ bias on a test procedure not associated with the training. Follow-up testing of 30 of the children approximately 1 yr after the posttest revealed a tendency for the pro-Euro bias to be partially reestablished. The second study involved 70 Euro-American kindergarten children and was concerned with the modification of $\text{E+}\text{A?}$ bias via a classroom curriculum procedure and the possible influence of the race of the teacher associated with the curriculum. The experimental curriculum, designed to develop positive associations to dark-skinned persons and to the colors black and brown, was shown to have no effect on $\text{E+}\text{A?}$ bias, nor was race of teacher a variable of significance. Possible explantations for the findings of both experiments were discussed.     

Stability of the Kaufman Assessment Battery for Children for a sample of Mexican-American children

Test-retest stability of the Kaufman Assessment Battery for Children (K-ABC) was investigated over a 5$\text{1}\text{2}$-month interval for 42 Mexican-American preschool/kindergarten children. The results indicated that the stability coefficients for K-ABC Global scales and subtests were generally of adequate magnitudes (e.g., .70s and .80s), providing some evidence that the K-ABC is a relatively stable instrument for the sample. The results are discussed in the context of a test-retest study reported in the K-ABC Manual. Global scale stability coefficients were found to range from .76 to .90, and for the subtests the coefficients ranged from .26 to .89. The patterns of gain scores were very similar to the patterns reported in the stability investigation in the K-ABC Manual.     

Effects of parent training on parent instruction and child learning of intellectual skills

The present investigation examined the effects of a brief parent training package on parental application of behavioral procedures during child instruction. In addition, it investigated the effects of parent training on child learning of two intellectual skills. Forty-nine parents and their $\text{2}\text{1}\text{2}$ to 5-year-old children participated. A discriminant analysis revealed that the parent training package produced variations in parental use of modeling, physical prompting, verbal instructional prompting, and aversive control. However, the pattern of variations differed across instructional tasks. Regression analysis showed that parent training produced differences in child learning in one of the two skills targeted for instruction.     

Propositional self-control in children

The scope of Dulany's (1968) Theory of Propositional Control was examined using 54 $\text{11}\text{1}\text{2}\text{-, 8}\text{1}\text{2}\text{-,}\text{and 4}\text{1}\text{2}\text{-year-olds}$. Significance of the reinforcer was manipulated orthogonally to value of the reinforcer. With a six attribute concept attainment task $\text{4}\text{1}\text{2}\text{-}\text{year-olds}$ did not learn in either of two significant ways: a performance change over blocks, nor the acquisition of a rule of reinforcement. Children of $\text{8}\text{1}\text{2}$ and $\text{11}\text{1}\text{2}$ learned in both of the above senses. In addition, for the latter subjects the central equations of the theory held with strength and subjects' intentions accounted for more variance in performance than did the experimental manipulations. In supplementary experiments using a simplified task some $\text{4}\text{1}\text{2}\text{-}\text{year-olds}$ learned. When only the $\text{4}\text{1}\text{2}\text{-}\text{year-olds}$ who learned to a criterion were examined the central equations of the theory were nearly as strong as for subjects at ages $\text{8}\text{1}\text{2}$ and $\text{11}\text{1}\text{2}$. There was no evidence for learning without awareness at any age level.     

The use of a sequenced questioning paradigm to facilitate associative fluency in preschoolers

The intent of the study was to investigate the extent to which free play vs. sequenced questioning conditions facilitated preschoolers' associative fluency. Twenty-four children (12 boys and 12 girls, $\text{x}$ age of 50.7 months) were randomly assigned to one of three conditions: free play, questions, control, in the first two conditions, children interacted with randomly chosen conventional objects. Children in all conditions were asked for novel uses for the conventional objects. Children in the sequenced questioning condition generated significantly more novel responses than children in the other two conditions (p < .002). No significant difference was observed between the play and control conditions. Implications for pedagogy are discussed. Teachers should pose the sequence of questions so as to enable children to explore their hypotheses.     

Tower of Hanoi performance of retarded young adults and nonretarded children as a function of solution length and goal state

Three experiments were conducted with the Tower of Hanoi task to assess problem solving ability in 6-, 7-, 8-, and 10-year-old nonretarded children and mentally retarded young adults of varying maturational ages. In Experiment 1 we gradually reduced the number of moves required for solution until subjects could solve the 3-disk tower-ending problem. Although all groups experienced difficulty with the standard 7-move problem, all but the trainable retarded group readily solved the 6-move problem. The trainable group did not reach a comparable level of success until the 4-move problem. On the 7-move problem the retarded groups performed at the level of nonretarded groups that were maturationally $\text{1}\text{1}\text{2}$ to 3 years younger. An analysis of first moves indicated that subject groups differed in the strategies they used to solve the problems. In Experiment 2, practice effects were ruled out as a source of the superior performance on the 6- than on the 7-move problem. In Experiment 3, 7- and 10-year-old nonretarded children and mentally retarded young adults did not differ on 5-move problems in which configuration of the goal states was varied. A comparison of all 5-move problems judged to have the same depth of search requirements indicated that the tower-ending problems were significantly easier to solve than the partial-tower-ending problems, which in turn were easier than the flat-ending problems. A limited depth of search capacity sets boundaries on the use of sophisticated strategies and, to a large extent, accounts for the retarded groups' maturational lag.     

Black-white differences at ages 212−812 on the McCarthy scales of children's abilities

Comparisons were made between matched groups of black and white children on the new McCarthy Scales of Children's Abilities. Using the standardization sample as the data source, 148 matched pairs were obtained. These were grouped as follows: ages $\text{2}\text{1}\text{2}\text{?3}\text{1}\text{2}\text{(}\text{N}\text{= 60), 6}\text{1}\text{2}\text{8}\text{1}\text{2}\text{(}\text{N}\text{= 45)}$. The blacks and whites did not differ significantly on any of the cognitive scales at ages $\text{2}\text{1}\text{2}\text{?3}\text{1}\text{2}\text{and}\text{4?5}\text{1}\text{2}$, although at ages $\text{6}\text{1}\text{2}\text{-8}\text{1}\text{2}$ the whites scored about $\text{1}\text{2}\text{SD}$ higher. The blacks scored significantly higher on the Motor Scale at ages $\text{4?5}\text{1}\text{2}$ but there were no differences at other ages. The implications of these findings are discussed.     

The emergence of functional play in infants: Evidence for a major cognitive transition

Sixty-four infants, eight boys and eight girls at each of four ages, $\text{9}\text{1}\text{2}\text{, 11}\text{1}\text{2}\text{, 13}\text{1}\text{2}\text{,}\text{and}\text{15}\text{1}\text{2}$ months, were observed during a 15-minute free play session. Three types of play (stereotypical, relational, and functional) and the number of appropriate uses for specific realistic toys were recorded. Stereotypical play (87% of total active play at $\text{9}\text{1}\text{2}$ months) gave way to relational (35% at $\text{13}\text{1}\text{2}$ months) and functional play (52% at $\text{15}\text{1}\text{2}$ months) as the dominant activity. Both functional play and the number of different appropriate uses of toys were rare at $\text{9}\text{1}\text{2}$ months, appeared reliably at $\text{11}\text{1}\text{2}$ months and increased lineraly through $\text{15}\text{1}\text{2}$ months. A change in the quality of play from indiscriminate mouthing, waving, banging, and fingering of objects to the matching of appropriate uses for a large array of toys indicates that the child's manipulations become more object specific and functional over this 6-month age span. Among possible explanations for the linear increase in the frequency and diversity of appropriate toy uses is the suggestion that an important cognitive change occurs toward the end of the first year of life. A case study is presented to illustrate the application of the play procedure for both assessment and treatment.     

Children's understanding of human and super-natural mind

Barrett, Richert, and Driesenga [Barrett, J. L., Richert, R. A., & Driesenga, A. (2001). God's beliefs versus mother's: The development of nonhuman agents concepts. Child Development, 72(1), 50–65] have suggested that children are able to conceptualize the representational properties held by certain super-natural entities, such as God, before they achieve representational understanding of the human mind. The two experimental conditions of the present study aimed at cross-checking the above suggestion. One hundred and twenty children aged from 3 to 7 years were involved in both conditions. In the first, a modified perspective-taking and appearance-reality task, similar to that adopted in Barrett et al.'s study, was used. The task in the second addressed another aspect of representational understanding of the human mind, that is, the early emerging of the rule that knowledge is constrained by perception. The results of the study showed that younger children systematically treat God as a human protagonist regarding the representational properties they possess. Moreover, it was found that children are able to reason, accurately, about God's representational properties, only upon reaching their 5th year of age, when their representational understanding of the human mind becomes stable and robust.     

Factor structure of the McCarthy scales for school-age children with low GCIs

This study aimed to cross-validate the factor analysis of the McCarthy Scales and to determine the construct validity of these scales for children who score one standard deviation below the normative mean on general cognitive ability. The sample was comprised of 77 children aged 6 to $\text{8}\text{1}\text{2}$ with a mean General Cognitive Index (GCI) of 61.6. Principal factor analysis produced four meaningful factors which corresponded closely to four of the scales on McCarthy's battery. The present findings discourage the interpretation of the Quantitative Scale for school-age children with GCIs below 84. Other implications of the results for the interpretation of McCarthy profiles for low-scoring school-aged children are discussed.     

Limitations on children's short-term memory for left-right orientation

The time course of kindergarten children's memory for left-right orientation during the first $\text{2}\text{1}\text{2}\text{sec}$ after receptor stimulation was investigated by means of a successive matching-to-sample task with tachistoscopically presented abstract figures. The first study indicated that young children have difficulty encoding left-right orientation into short-term memory and treat left-right orientation as low-priority information that is likely to be lost when there is an information overload. A second study indicated that kindergarten children who are able to encode left-right orientation do so more slowly than adults. An unexpected finding occurring in both studies was that the presentation of the comparison figures appeared to terminate initial processing of the standard figure. It is argued that this effect was due to cognitively based visual masking.     

Blocking and unblocking of conditioned analgesia

Two experiments with rat subjects assessed the blocking phenomenon using inhibition of responding to painful thermal stimulation as an index of conditioned analgesia established through conditioned stimulus (CS)-shock pairings. In Experiment 1, a group of rats receiving the standard blocking procedure ($\text{A+}\text{AB+}$) showed shorter response latencies during a hot plate test of pain sensitivity in the presence of the added CS than groups of rats receiving various blocking control procedures. Experiment 2 replicated the blocking outcome of Experiment 1 and also demonstrated that the addition of a second shock unconditioned stimulus (US) during the compound conditioning phase attenuated the blocking effect; i.e., unblocking was observed. However, the deletion of a second shock US during compound conditioning in a group that had received two shocks on each trial in the first phase of the experiment failed to result in unblocking. These data extend the associative account of conditioned analgesia to situations involving stimulus selection and the implications for the analysis of aversive learning are discussed.     

Some types of stability in the study of students' work values

It is suggested the concept of “stability” in the study of work values has at least three facets: (1) hierarchical stability, (2) response pattern stability, and (3) factor stability. These three facets are investigated using a sample of 165 Australian students, assessed using a work values list initially in Grade 12 and then $\text{2}\text{1}\text{2}$ years later during which time all had engaged in full-time tertiary study. Of the 13 work values assessed only independence and intellectual stimulation increased in importance and surroundings decreased. Canonical correlation analysis revealed four significant response patterns which indicated that the same work value may sometimes be stable or changeable in combination with other work values. It was also found using factor analysis that two rotated principal components appeared stable over time. They were identified as an Intellectual Concern factor and People Concern factor. An Extrinsic Concern factor for subjects as high school students was found to differentiate into a Status/Power Concern factor and a Co-workers Concern factor by the time of the second assessment. A Freedom Concern factor found in the Grade 12 assessment was not discovered until $\text{2}\text{1}\text{2}$ years later. The results confirm the need for further theoretical and methodological refinement of the notion of stability in the study of work values.