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Infant behaviour questionnaire - revised version: a psychometric study in a Portuguese sample
Raquel Costa1,2, Bárbara Figueiredo3
1a Universidade Europeia , Lisboa , Portugal.
Insights
The Infant Behaviour Questionnaire - Revised (IBQ-R) is a reliable tool for assessing infant temperament in Portuguese culture. A modified structure of the IBQ-R demonstrated better fit for Portuguese data than the original.
Area of Science:
- Developmental Psychology
- Child Psychology
- Behavioral Science
Background:
- Infant temperament characteristics are generally stable but can be influenced by environmental factors.
- Parental reports are valuable for understanding infant behavior across various contexts.
Purpose of the Study:
- To evaluate the psychometric properties of the Portuguese version of the Infant Behaviour Questionnaire - Revised (IBQ-R).
- To assess the suitability of the original and alternative IBQ-R structures for Portuguese infants.
Main Methods:
- The study involved 330 mothers and 81 fathers of children aged 3-12 months.
- Participants completed the Portuguese version of the Infant Behaviour Questionnaire - Revised (IBQ-R).
- Confirmatory factorial analysis was used to test model fit.
Main Results:
- The original IBQ-R structure did not fit the Portuguese data adequately.
- A previously published alternative structure of the IBQ-R showed an adequate model fit.
- This alternative structure, with minor differences from the original, appears more appropriate for the Portuguese sample.
Conclusions:
- The Infant Behaviour Questionnaire - Revised (IBQ-R) is a reliable instrument for assessing infant temperament in the Portuguese cultural context.
- A modified structure of the IBQ-R is recommended for use with Portuguese infants.
Background:
Although the original characteristics of temperament tend to remain constant over the course of development, environmental circumstances may influence infants' reactions and behaviour. Parents' reports of infant temperament are rich informants of infant behaviours in different contexts.
Objective:
This study aimed to examine the psychometric properties of the Portuguese version of the Infant Behaviour Questionnaire - Revised (IBQ-R) and test the adequacy of the original and other previously published structures to the Portuguese data.
Method:
330 mothers and 81 fathers of children aged between 3 and 12 months completed the Portuguese version of the IBQ-R.
Results:
The confirmatory factorial analysis revealed a non-adequate model fit of the IBQ-R original structure to the Portuguese data; nonetheless, it did reveal an adequate model fit of a previous published IBQ-R structure. This structure, although only slightly different from the original one, seems to be more suitable for the Portuguese data.
Conclusion:
This study provides data that indicates that the IBQ-R is a reliable questionnaire to evaluate infant temperament in the Portuguese culture.
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