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Temperament questionnaires in clinical research
Insights
New parental questionnaires reliably measure infant temperament across multiple ages. While temperament types were stable, individual scores showed moderate change over time, impacting clinical research applications.
Area of Science:
- Child Psychology
- Developmental Psychology
- Behavioral Science
Background:
- Temperament is a crucial aspect of child development.
- Previous methods for assessing infant temperament had limitations.
- The New York Longitudinal Study established key temperament variables.
Purpose of the Study:
- To develop and validate parental questionnaires for measuring infant temperament.
- To assess the reliability and validity of these new instruments.
- To examine temperament characteristics in a large, longitudinal sample.
Main Methods:
- Development of parental questionnaires for nine temperament variables.
- Longitudinal study of children at 6, 12, and 24 months.
- Retest reliability analysis and factor analysis of temperament data.
Main Results:
- Questionnaires demonstrated generally satisfactory retest reliability.
- Temperament showed little relation to gender, birth order, or social class.
- Two stable temperament patterns emerged at 12 and 24 months; score stability was low to moderate.
Conclusions:
- Parental questionnaires are a reliable tool for assessing infant temperament.
- Infant temperament types are relatively stable, but individual scores can change.
- Findings support the use of these questionnaires in clinical research.
Abstract:
Parental questionnaires concerning the nine temperament variables studied in the New York longitudinal study have been developed for the measurement of children's temperament at six, 12 and 24 months of age. Retest reliability for the questionnaires was found to be generally satisfactory and at a level similar to that found in other temperament studies. The temperament characteristics of a large standardization sample, studied longitudinally over the three ages, showed little relation to the children's gender, birth order or social class. Factor analyses of the variables showed that two of the patterns were identical at 12 and 24 months of age: one pattern consisted of mood, approach, adaptability and distractibility, and the other of activity, approach and intensity. The standardization sample showed about the same rates of the 'difficult' and the 'slow-to-warm-up' temperament types, as found in early samples. The stability of the subjects' temperament scores over time was low to moderate, and a majority of the subjects changed their temperament type over the 18 months covered by the longitudinal study. The use of temperament questionnaires in clinical research is illustrated in three current studies.
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