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Infant Health and Development Program: Data Sources

Data Sources

Source Developmental assessments/screenings
Title Cognitive Development Assessments
Sample Characteristics/Data Collection 985 children in study sample.
Data collected at 36 months (Stanford-Binet Intelligence Scale), 5 years (Weschler Preschool and Primary Scale of Intelligence), 8 years (Weschler Intelligence Scale for Children-III, Peabody Picture Vocabulary Test-Revised, Developmental Test of Visual-Motor Integration, Ray-Osterrieth Complex Figure, Matrices, and Wide Range Assessment of Memory and Learning), and 16/17 years (Weschler Abbreviated Scale of Intelligence and PPVT-R).
Sites All sites.
Response Rate/Attrition Notes For 36-month follow-up: 93% of original sample
For 5-year follow-up: 82% of original sample
For 8 year follow-up: 89% of original sample
Additional Execution Notes Stanford-Binet Intelligence Scale, form L-M, 3rd edition (1972 norms);
Weschler Preschool and Primary Scale of Intelligence (WPSSI);
Weschler Intelligence Scale for Children-III;
Peabody Picture Vocabulary Test-Revised);
Developmental Test of Visual-Motor Integration;
Ray-Osterrieth Complex Figure; Matrices;
Wide Range Assessment of Memory and Learning;
Parental reports of school performance (sample includes parents of study children; data collected at 8 years only; response rate = 89%)
 
Source Developmental assessments/screenings
Title Behavioral Competence
Sample Characteristics/Data Collection 985 children in study sample.
Data collected at 3 (Child Behavior Checklist (CBCL) for Ages 2 to 3 Years); 5 and 8 years (CBCL for Ages 4 to 16 years) and 8 years only (Behavior Rating Profile; Psychological Examination Behavior Profile); 16/17 years (CBCL for ages 4-18 years).
Sites All sites.
Response Rate/Attrition Notes For 36-month follow-up: 93% of original sample
For 5-year follow-up: 82% of original sample
For 8-year follow-up: 89% of original sample
Additional Execution Notes Child Behavior Checklist for Ages 2 to 3 Years;
Child Behavior Checklist for Ages 4 to 16 years;
Behavior Rating Profile;
Psychological Examination Behavior Profile)
 
Source Developmental assessments/screenings
Title Health and Morbidity Assessments
Sample Characteristics/Data Collection Mothers of children in study sample.
Data collected when study children were ages 1,2,3,5, 8, 16/17.
Sites All sites.
Response Rate/Attrition Notes For Functional Status Scale:
For 36-month follow-up: 93% of original sample
For 5-year follow-up: 82% of original sample
For 8 year follow-up: 89% of original sample
Additional Execution Notes Measures include:

Overall Morbidity Measure (Verbatim reports assigned International Classification of Diseases ICD-Ninth Revision codes. In addition, children were tested for cerebral palsy at age 3 years based on medical examination);

Morbidity Index (Index is a summation over the three years of the number of hospitalizations, outpatient surgeries, injuries not resulting in hospitalization or outpatient surgery, and different (code) illnesses and conditions);

Serious Morbidity Index (Index consists of the number of years (0-3) in which there was one or more of the following: hospitalizations, outpatient surgeries, prolonged or recurrent illnesses totaling 30 days or longer in a given year, and injuries or briefer illnesses that were predefined as serious by a panel of physicians);

Maternal Perception of Child Health Status: General Health Rating Index (Index from Rand Corporation Health Insurance Study. All health data were collected by clinic staff, except the 36-month growth measures);

Functional Status II(R)Scale (Growth was assessed by length and body mass index at 36 months)

 
Source Developmental assessments/screenings
Title Academic achievement: Woodcock-Johnson Tests of Achievement-Revised
Sample Characteristics/Data Collection 874 children in study sample.
Data collected at age 8 and age 16/17
Sites All sites.
Response Rate/Attrition Notes Reported response rate: 89% of original sample
Additional Execution Notes No notes reported.
 

 
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