Comparison of McCarthy General Cognitive Index and Wisc-R IQ for Educable Mentally Retarded, Learning Disabled, and Normal Children

1980 ◽  
Vol 47 (2) ◽  
pp. 591-596 ◽  
Author(s):  
Jack A. Naglieri
Keyword(s):  
Mentally Retarded ◽  
Learning Disabled ◽  
Full Scale ◽  
Normal Children ◽  
Three Samples ◽  
The Mean ◽  
Educable Mentally Retarded ◽  
The Relationship ◽  
Selection Of

The relationship between the McCarthy General Cognitive Index and the WISC-R Full Scale IQ was examined for 20 educable mentally retarded, 20 learning disabled, and 20 normal children aged 6 to 8½ yr. Selection of children was conducted so that the three groups would be comparable with res pea to age, sex, and race. The mean McCarthy Indexes for the retarded and learning disabled samples were significantly lower than the mean WISC-R Full Scale IQs. When the Index and Full Scale IQ were converted to a common metric and compared, the mean index for the retarded and learning disabled samples remained lower than the Full Scale IQs, although the differences were nonsignificant. The measures correlated significantly for all three samples and ranged from .51 to .82.

Inter-Rater Reliability and Concurrent Validity of the Goodenough-Harris and McCarthy Draw-a-Child Scoring Systems

1981 ◽  
Vol 53 (2) ◽  
pp. 343-348 ◽  
Author(s):  
Jack A. Naglieri ◽  
Susanna Maxwell
Keyword(s):  
Concurrent Validity ◽  
Scoring Systems ◽  
Mentally Retarded ◽  
Learning Disabled ◽  
Full Scale ◽  
Normal Children ◽  
Rater Reliability

Inter-rater reliability of the Goodenough-Harris and McCarthy Draw-A-Child scoring systems was examined for a sample of 60 children, including 20 school-labeled learning disabled, 20 mentally retarded, and 20 normal children between the ages of 6 and 8 ½ yr. ( M = 7–8; 44 males and 16 females; 36 whites and 24 blacks). The inter-rater reliabilities of the Goodenough-Harris system were .938 and .934 for the McCarthy Draw-A-Child. The scores from both drawing tests correlated significantly, .57 to .87, with the WISC-R Full Scale IQ and McCarthy General Cognitive Index. Implications are discussed as they relate to the use of the Goodenough-Harris and McCarthy Draw-A-Child systems.

Test-Retest Wechsler Intelligence Scale for Children—Revised Scores for 310 Educable Mentally Retarded and Specific Learning Disabled Students

1985 ◽  
Vol 56 (3) ◽  
pp. 857-858 ◽  
Author(s):  
James E. Whorton
Keyword(s):  
Mentally Retarded ◽  
Learning Disabled ◽  
Full Scale ◽  
Exceptional Students ◽  
Disabled Students ◽  
Intelligence Scale ◽  
Scale Scores ◽  
Educable Mentally Retarded ◽  
Specific Learning ◽  
Verbal Performance

Pearson coefficients were computed between 1979–80 and 1982–83 Wechsler Intelligence Scale for Children—Revised Verbal, Performance, and Full Scale scores for 310 exceptional students (89 mentally retarded and 221 learning disabled). The correlations were all significant at p = .001.

Teacher Ratings and Self Concept Reports of Retarded Pupils

1973 ◽  
Vol 40 (3) ◽  
pp. 178-183 ◽  
Author(s):  
Bert O. Richmond ◽  
J. Leon Dalton
Keyword(s):  
Academic Success ◽  
Educational Program ◽  
Mentally Retarded ◽  
Teacher Ratings ◽  
Academic Ability ◽  
Emotional Behavior ◽  
Self Concept ◽  
Social And Emotional ◽  
Educable Mentally Retarded ◽  
The Relationship

This study examines the relationship between self ratings and teacher ratings of 100 children in classes for the educable mentally retarded. The results indicate that the self images of these pupils are positively related to the teachers' image of their academic ability. The teachers' ratings of each pupil's social and emotional behavior were not correlated significantly with the child's perception of his social or emotional relationship. In addition, the educable mentally retarded subjects in this study did not perceive their standing among peers to be positively correlated to academic success. Implications of these findings for the pupils ' educational program are suggested.

Relationship of Scores on PPVT—R and WISC—R with Special Education Children and Youth

1986 ◽  
Vol 62 (2) ◽  
pp. 417-418 ◽  
Author(s):  
Ann C. Candler ◽  
Cleborne D. Maddux ◽  
Dee La Mont Johnson
Keyword(s):  
Special Education ◽  
Mentally Retarded ◽  
Learning Disabled ◽  
Full Scale ◽  
Children And Youth ◽  
Vocabulary Test ◽  
Peabody Picture Vocabulary ◽  
Peabody Picture Vocabulary Test ◽  
Intelligence Scale ◽  
Relationship Of

Comparisons of the Peabody Picture Vocabulary Test—Revised and the Wechsler Intelligence Scale for Children—Revised were made with 104 children diagnosed as learning disabled and mentally retarded. Significant but modest correlations were found between all but one of the WISC—R scaled scores (i.e., Coding) and PPVT—R standard scores, and between WISC—R IQs and PPVT—R standard scores. Significant differences were found among mean Verbal, Performance, and Full Scale IQs and mean PPVT—R standard scores. The PPVT—R standard scores underestimated WISC—R Verbal IQs by 7 points, WISC—R Performance IQs by 17 points, and WISC—R Full Scale IQs by 11 points.

Comparison of the WISC-R Patterns of Children of Average and Exceptional Ability

1983 ◽  
Vol 53 (2) ◽  
pp. 539-544 ◽  
Author(s):  
H. P. J. Schmidt ◽  
D. H. Saklofske
Keyword(s):  
Mentally Retarded ◽  
Learning Disabled ◽  
Group Differences ◽  
Disabled Children ◽  
Normal Children ◽  
Exceptional Groups ◽  
Diagnostic Usefulness ◽  
Verbal Performance

This study investigated the diagnostic usefulness of WISC-R Verbal-Performance IQ discrepancies, subtest scatter, and Bannatyne's subtest recategorizations with educationally normal and exceptional groups of children. The subjects for this study were four groups of 74 learning disabled, 24 mentally retarded, 94 gifted, and 85 educationally normal children. No significant differences in discrepancies in Verbal-Performance IQs occurred among the four groups although learning disabled children more often showed Performance > Verbal discrepancies. No differences were found between the samples in the amount of subtest scatter. Group differences were noted in the patterns of scores on Bannatyne's recategorizations.

Correlations for Wechsler Intelligence Scale for Children—Revised and the Wechsler Preschool and Primary Scale of Intelligence for Iranian Children

1992 ◽  
Vol 70 (1) ◽  
pp. 27-30 ◽  
Author(s):  
Sima Shahim
Keyword(s):  
Full Scale ◽  
Intelligence Scale ◽  
Verbal Iq ◽  
Primary Scale ◽  
Vocabulary Comprehension ◽  
Picture Completion ◽  
The Mean ◽  
Iranian Children ◽  
The Relationship ◽  
Pearson Correlations

This study focused on the relationship between the Wechsler Intelligence Scale for Children—Revised (WISC—R) and the Wechsler Preschool and Primary Scale of Intelligence (WPPSI) given to 40 6-yr.-old Iranian children. Pearson correlations between the WISC—R and the WPPSI IQs and between scaled scores on the corresponding subtests were significant. The comparison of mean IQs and scaled scores indicates that the WISC—R yielded a significantly higher Verbal IQ and higher scores on Information, Vocabulary, Comprehension, and Picture Completion than the WPPSI. The mean difference between corresponding Verbal and Full Scale IQs was not significant. These results suggest that scores on the two instruments correlated well for these 6-yr.-old Iranian children and the content on which IQs for the recently restandardized WISC—R and WPPSI are based are related.

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