Comparison of the predictive validities of two McCarthy short forms

Scores on Kaufman's (1977) McCarthy short form and the McCarthy Screening Test (1978) were obtained for a sample of 53 first graders in their first month of school. Nine months later, the Metropolitan Achievement Test was administered to the sample. The correlation between Kaufman's estimated General Cognitive Index and the Metropolitan Basic Battery raw score was .71. Biserial correlations between “At Risk” and “Not At Risk” classifications of the McCarthy Screening Test and Metropolitan Basic Battery raw scores ranged from .43 to .78. Kaufman's short form scores usually indicated a smaller number of false negatives than did McCarthy Screening Test scores. Implications of these findings for these findings for first-grade screening are discussed.     

Comparison of the K-ABC and PPVT-R with Head Start Chidren

The relationship between the new Kaufman Assessment Battery for Children (K-ABC) and the Revised Peabody Picture Vocabulary Test (PPVT-R) Forms L and M was explored for a sample of 30 predominantly black Head Start children. The highest correlations occurred between the K-ABC Achievement Scale and the PPVT-R. The K-ABC Expressive Vocabulary subtest correlated moderately highly with PPVT-R Form L, while the K-ABC Riddles subtest correlated moderately highly with PPVT-R Form M. Mean standard scores for the K-ABC Scales and subtests ranged from 11 to 20 points higher than those obtained on the PPVT-R. It would not appear redundant to administer the PPVT-R in addition to the K-ABC when one needs a receptive vocabulary measure.     

The relationship between the Luria-Nebraska neuropsychological battery-children's revision and the Minnesota Percepto-Diagnostic Test with learning disabled students

The Luria-Nebraska Neuropsychological Battery-Children's Revision (LNNB-Children's Revision) and The Minnesota Percepto-Diagnostic Test (MPD) were administered to 40 learning disabled (LD) students. Correlations were run between the scales of the LNNB-Children's Revision and MPD scores across the sample. Coefficients ranged from .07 to .71 for the intercorrelations of the scales of the LNNB-Children's Revision. Low correlations (−.10 to −.27) were found between MPD T scores and the LNNB-Children's Revision Scales, but raw scores from the MPD had somewhat higher correlations with the LNNB (.18 to .65).     

The prediction of first-grade reading achievement from WPPSI scores of preschool children

The purpose of this study was to measure the relationship between the WPPSI IQs and subtest scaled scores in preschool children and their reading achievement in grade one. Twenty-eight suburban middle class children were given the WPPSI at ages three to five and retested with the Gray Oral Reading Test near the end of first grade. Significant correlations between WPPSI IQs and reading were found. These correlations were similar in magnitude to those obtained between WPPSI IQs of kindergarten children and grade one reading. Further study of the predictive power of the Geometric Designs and Arithmetic subtests was suggested on the basis of correlations obtained between these subtests and later reading scores.     

Simultaneous Statistical Tests on Categorical Data

Educable mentally retarded children and normal children of average intelligence were compared in performance on the Children’s Manifest Anxiety Scale. The purpose of the study was to determine the following: 1.) a measure of long-term test-retest reliability, 2.) suitability of the scale with a younger chronological age group, and 3.) comparative data on differences in anxiety scores between normal and retarded children.Controls for procedural modifications, residential and educational status, sex differences, chronological age range, and range of IQ were employed. Test-retest correlations indicated that the scale was reliable for normal Ss but not for the retarded Ss. CMAS effects based on age and IQ did exist. Older retardates received higher anxiety scores than younger retardates on Test 2, while Test 1 difference was not significant. Retarded children obtained higher anxiety scores than normal children on Test 1. It was concluded that reliability over a 10-month period is poor for retarded Ss. Moreover, the instrument is of doubtful utility with younger retarded Ss.     

The concurrent validity of the Cognitive Levels Test with the Wechsler Intelligence Scale for Children-Revised for a sample of referred children and youth

The present investigation compared the Cognitive Levels Test (CLT) and the Wechsler Intelligence Scale for Children-Revised (WISC-R) scores for 55 children who were referred for remedial educational services. A comparison of the correlations for each of the criterion measures from the WISC-R showed a consistent significant positive relationship with the CLT. A repeated measures analysis of variance that compared standard scores for the CLT with those of the WISC-R indicated that significant differences existed between WISC-R IQs and the CLT Cognitive Index. Implications concerning the validity of the Cognitive Levels Test are discussed.     

Relation between Kaufman Brief Intelligence Test and WISC-III scores of children with RD

Concurrent validity of the Kaufman Brief Intelligence Test (K-BIT) with the Wechsler Intelligence Scale for Children-Third Edition (WISC-III) was evaluated, as well as the K-BIT's accuracy as a predictor of WISC-III scores, in a sample of young children with reading disabilities. The two measures were administered to 65 children from Atlanta, Boston, and Toronto who ranged from 6-5 to 7-11 years of age at testing. Correlations between the verbal, nonverbal, and composite scales of the K-BIT and WISC-III were .60, .48, and .63, respectively. Mean K-BIT scores ranged from 1.2 to 5.0 points higher than the corresponding WISC-III scores. Standard errors of estimation ranged from 10.0 to 12.3 points. In individual cases, K-BIT scores can underestimate or overestimate WISC-III scores by as much as 25 points. Results suggest caution against using the K-BIT exclusively for placement and diagnostic purposes with young children with reading disabilities if IQ scores are required.     

Effects of two instructional sets on the validity of the Kaufman assessment battery for children–nonverbal scale with a group of severely hearing impaired children

The purpose of the study was to investigate the use of the Kaufman Assessment Battery for Children (K-ABC)–Nonverbal Scale with severely hearing impaired children. The K-ABC was administered to 49 children enrolled at a public residential school for the deaf. Test instructions were given to one group employing American sign language (ASL), plus pantomime and gestures, while the other group received pantomime and gesture (PG) instructions only. No significant difference was found between the two group mean nonverbal K-ABC scores. Also, neither group scored significantly different from the K-ABC norms. Both groups scored significantly lower than K-ABC norms on the Spatial Memory subtest. Significant correlations were found between the K-ABC and Wechsler Intelligence Scale for Children-Revised (WISC-R). A significant correlation also was found between K-ABC scores and Reading Comprehension. A post hoc analysis of data found that, regardless of the instructional set, the children scored significantly lower on the Nonverbal K-ABC than they did on the WISC-R Performance Scale. The study provides support for the appropriateness of the K-ABC for use with deaf children.     

Effects of methylphenidate on the auditory processing abilities of children with attention deficit-hyperactivity disorder.

Stimulant medications are widely used as part of the treatment for children with attention deficit-hyperactivity disorder (ADHD). The current study investigated the effects of methylphenidate on auditory vigilance, auditory processing abilities, and receptive language abilities of children with ADHD. Twenty subjects (17 males and 3 females) ranged in age from 7 to 13 years. Each subject had been diagnosed as having ADHD and had been prescribed methylphenidate for the control of hyperactivity. The test battery included the Auditory Continuous Performance Test (ACPT), SCAN (a screening test for auditory processing disorders in children), and the Token Test for Children. Results indicated that there was significant improvement in the children's performance on all measures when on methylphenidate. Implications of these findings are discussed.     

Comparisons of the peabody picture vocabulary test and the McCarthy Sclaes of Children's Abilities with a sample of autistic children

The Peabody Picture Vocabulary Test and the McCarthy Scales of Children's Abilities were administered to eight autistic children. A correlated t-test and Pearson product correlations were calculated between the scores of the two tests in a within-subjects desgin. The Peabody correlated significantly with the McCarthy General Cognitive Index, Verbal Scale, perceptual Scale, and Memory Scale. A significant difference between the means of the two tests was found, with the Peabody yielding lower scores. The importance of multiskilled testing for the cognitive assessment of autistic children was discussed.     

Validity of WISC-R IQS and factor scores in predicting achievement for Mexican-American children

The predictive validity of the WISC-R IQs and factor scores was examined with a sample of 64 Mexican-American children. All the correlations among the WISC-R factor scores and academic achievement as measured by the Wide Range Achievement Test (WRAT) were found to be low, ranging from .09 to .31. Significant relationships were observed only between WRAT Reading and Perceptual Organization (PO) factor, WRAT Arithmetic and PO factor, and Freedom from Distractibility (FD) factor and WRAT Arithmetic scores. In contrast to this, however, significant relationships were observed between IQ scores and achievement measures, suggesting predictive utility of the WISC-R IQs in predicting achievement for Mexican-American children.     

Comparison of California Test of Mental Maturity and WISC-R IQs among children suspected of being EMR or LD

The California Test of Mental Maturity, Short Form (CTMM-SF) and the WISC-R were compared in a sample of black and white children, ages 6-8 to 15-2 years, referred for learning problems. A 2 × 2 mixed ANOVA (Ethnicity and Test) indicated that ethnicity was the only significant effect, with black children obtaining lower scores than white children. All correlations between the two tests were significant, although they were higher for white children than for black children. The results indicate that the CTMM-SF has adequate criterion-related validity.     

Day-Care Participation as a Protective Factor in the Cognitive Development of Low-Income Children

The impact of day-care participation during the first 3 years of life on the cognitive functioning of school age children was examined. 867 5- and 6-year-old children from the National Longitudinal Survey of Youth who completed the 1986 assessment were included in the sample. The dependent measures were scores on the Peabody Individual Achievement Test (PIAT) subtests of mathematics and reading recognition. In addition to day-care participation, the impact of the pattern of day-care was examined by analyzing the effect of the number of years in day-care, the timing of initiation of day-care, and type of day-care arrangement. After controlling for confounding factors, there were significant interactions between all 3 measures of day-care patterning and family income for reading recognition performance. This association was further examined by exploring the interaction between the pattern of day-care participation and the quality of the home environment. Initiation of day-care attendance before the first birthday was associated with higher reading recognition scores for children from impoverished home environments and with lower scores for children from more optimal environments. In addition, a significant interaction between the type of day-care arrangement and the quality of the home environment emerged for mathematics performance. Center-based care in particular was associated with higher mathematics scores for impoverished children and with lower mathematics scores for children from more stimulating home environments. These findings are discussed in the context of developmental risk.     

Attitudes Toward Deafness and Security of Attachment Relationships Among Young Deaf Children and Their Parents

This study investigated deaf children's "security of attachment" relationships with their hearing parents and the relationship of parental attitudes toward deafness. Subjects included 30 deaf children and their hearing parents. The children ranged in age from 20 to 60 months. Instruments used included the Attachment Q-Set, the Attitudes to Deafness Scale, and parental interviews. As a group there were no differences between security of attachment scores of deaf children toward either of their parents; however, there were marked differences within individual dyads of mother-child/father-child relationships. In addition, negative correlations were found between parents' attitudes towards deafness scores and their deaf children's security of attachment scores. Implications for the field include the importance of inclusion of fathers in attachment studies and fathers' active participation in early intervention programs. The relationship between parental attitudes toward their children's disability (deafness) and attachment relationship provides further evidence for the critical role of early intervention in the development of children with special needs.     

Neuropsychological correlates of vocabulary, reading, and working memory in deaf children with cochlear implants

The performance of deaf children with cochlear implants was assessed using measures standardized on hearing children. To investigate nonverbal cognitive and sensorimotor processes associated with postimplant variability, five selected sensorimotor and visuospatial subtests from A Developmental Neuropsychological Assessment (NEPSY) were compared with standardized vocabulary, reading, and digit span measures. Participants were 26 deaf children, ages 6-14 years, who received a cochlear implant between ages 1 and 6 years; duration of implant use ranged from 3 to 11 years. Results indicated significant correlations between standard scores on the Design Copying subtest of the NEPSY and standard scores on vocabulary comprehension, reading, and digit span measures. The results contribute to our understanding of the benefits of cochlear implantation and cognitive processes that may support postimplant language and academic functioning.     

Attitudes Toward Deafness and Security of Attachment Relationships Among Young Deaf Children and Their Parents

This study investigated deaf children's "security of attachment" relationships with their hearing parents and the relationship of parental attitudes toward deafness. Subjects included 30 deaf children and their hearing parents. The children ranged in age from 20 to 60 months. Instruments used included the Attachment Q-Set, the Attitudes to Deafness Scale, and parental interviews. As a group there were no differences between security of attachment scores of deaf children toward either of their parents; however, there were marked differences within individual dyads of mother–child/father–child relationships. In addition, negative correlations were found between parents' attitudes towards deafness scores and their deaf children's security of attachment scores. Implications for the field include the importance of inclusion of fathers in attachment studies and fathers' active participation in early intervention programs. The relationship between parental attitudes toward their children's disability (deafness) and attachment relationship provides further evidence for the critical role of early intervention in the development of children with special needs.     

The Reliability and Validity of Quick Tests With High School Seniors

The Quick Word Test (QWT), Quick Number Test (QNT), and a number of criterion verbal and numerical tests were related with the English and Math grade point average (GPA) scores in this study. The QWT, in general, had lower correlations with English GPA scores than the criterion tests. The correlations between the QNT and the Math GPA was approximately at the same level as the criterion measures.     

Comparison of the PPVT and PPVT-R for preschool children: Implications for the practitioner

The aim of this study was to compare the standard scores and age scores obtained from the Peabody Picture Vocabulary Test (1965) and the Revised Peabody Picture Vocabulary Test (1981). The sample included 88 preschool children who ranged in age from 2–6 to 5–11. The mean PPVT IQ score was 98.9 (SD = 16.9) and Mental Age was 55.2 months (SD = 20.1 mo.); the mean PPVT-R Standard Score Equivalent was 95.4 (SD = 13.4) and Age Equivalent was 48.5 months (SD = 14.6 mo.). The mean PPVT IQ and Mental Age scores were significantly higher (p < .01) than the respective Standard Scores and Age Equivalents. Implications for the use of the Revised PPVT are discussed.     

A comparison of the PPVT-R and WISC-R with rural children referred for assessment

The present study investigated the relationship between the Revised Peabody Picture Vocabulary Test (PPVT-R) and the WISC-R for a naturally occurring sample of rural children referred for assessment (N = 53). The results indicated that the PPVT-R was highly correlated with WISC-R scale and subtest scores. Examination of a sub-sample of developmentally handicapped students revealed substantial reduction in correlational relationships as a function of reduced sample size and restricted range of general ability. While the PPVT-R was found to underestimate all three WISC-R scale scores, the discrepancy between the PPVT-R standard scores and the WISC-R Performance Scale score was the only statistically significant underestimation. Results are discussed in terms of prior research findings and implications for interpretation.