Abstract
Objective: To quantify practice effects associated with annual administrations of WISC-R and WAIS-R in children and adolescents with and without hemophilia. Methods: Participants were young men (age: 7-19; 80 with hemophilia, 30 siblings) enrolled in the Hemophilia Growth and Development Study. Participants with hemophilia completed age-appropriate Wechsler scales at baseline and at four annual follow-ups; the siblings, at baseline and one 2-year follow-up. Regression analyses were used to quantify average changes in scores, adjusting for variables related to test performance. Results: Consecutive annual evaluations were free of significant practice effects for 4 years with the Verbal Scale and for 2 years with the Performance Scale. VIQ decreased, and PIQ increased over time. Baseline VIQ was related to changes in VIQ; baseline PIQ and number of test-specific retests were related to changes in PIQ. Conclusions: The findings support use of Wechsler scales for annual evaluations to monitor cognitive development in children and adolescents.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 121-131 |
| Number of pages | 11 |
| Journal | Journal of Pediatric Psychology |
| Volume | 27 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2002 |
| Externally published | Yes |
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Keywords
- Chronic illness
- Longitudinal assessment
- Retest effects
- Sibling comparisons
- WAIS-R
- WISC-R
ASJC Scopus subject areas
- Psychology(all)
- Developmental and Educational Psychology
Cite this
Quantifying practice effects in longitudinal research with the WISC-R and WAIS-R : A study of children and adolescents with hemophilia and male siblings without hemophilia. / Sirois, Patricia A.; Posner, Michael; Stehbens, James A.; Loveland, Katherine A.; Nichols, Sharon; Donfield, Sharyne M.; Bell, Terece S.; Hill, Suzanne D.; Amodei, Nancy.
In: Journal of Pediatric Psychology, Vol. 27, No. 2, 2002, p. 121-131.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantifying practice effects in longitudinal research with the WISC-R and WAIS-R
T2 - A study of children and adolescents with hemophilia and male siblings without hemophilia
AU - Sirois, Patricia A.
AU - Posner, Michael
AU - Stehbens, James A.
AU - Loveland, Katherine A.
AU - Nichols, Sharon
AU - Donfield, Sharyne M.
AU - Bell, Terece S.
AU - Hill, Suzanne D.
AU - Amodei, Nancy
PY - 2002
Y1 - 2002
N2 - Objective: To quantify practice effects associated with annual administrations of WISC-R and WAIS-R in children and adolescents with and without hemophilia. Methods: Participants were young men (age: 7-19; 80 with hemophilia, 30 siblings) enrolled in the Hemophilia Growth and Development Study. Participants with hemophilia completed age-appropriate Wechsler scales at baseline and at four annual follow-ups; the siblings, at baseline and one 2-year follow-up. Regression analyses were used to quantify average changes in scores, adjusting for variables related to test performance. Results: Consecutive annual evaluations were free of significant practice effects for 4 years with the Verbal Scale and for 2 years with the Performance Scale. VIQ decreased, and PIQ increased over time. Baseline VIQ was related to changes in VIQ; baseline PIQ and number of test-specific retests were related to changes in PIQ. Conclusions: The findings support use of Wechsler scales for annual evaluations to monitor cognitive development in children and adolescents.
AB - Objective: To quantify practice effects associated with annual administrations of WISC-R and WAIS-R in children and adolescents with and without hemophilia. Methods: Participants were young men (age: 7-19; 80 with hemophilia, 30 siblings) enrolled in the Hemophilia Growth and Development Study. Participants with hemophilia completed age-appropriate Wechsler scales at baseline and at four annual follow-ups; the siblings, at baseline and one 2-year follow-up. Regression analyses were used to quantify average changes in scores, adjusting for variables related to test performance. Results: Consecutive annual evaluations were free of significant practice effects for 4 years with the Verbal Scale and for 2 years with the Performance Scale. VIQ decreased, and PIQ increased over time. Baseline VIQ was related to changes in VIQ; baseline PIQ and number of test-specific retests were related to changes in PIQ. Conclusions: The findings support use of Wechsler scales for annual evaluations to monitor cognitive development in children and adolescents.
KW - Chronic illness
KW - Longitudinal assessment
KW - Retest effects
KW - Sibling comparisons
KW - WAIS-R
KW - WISC-R
UR - http://www.scopus.com/inward/record.url?scp=18244406803&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18244406803&partnerID=8YFLogxK
U2 - 10.1093/jpepsy/27.2.121
DO - 10.1093/jpepsy/27.2.121
M3 - Article
C2 - 11821496
AN - SCOPUS:18244406803
VL - 27
SP - 121
EP - 131
JO - Journal of Pediatric Psychology
JF - Journal of Pediatric Psychology
SN - 0146-8693
IS - 2
ER -