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Alberta infant motor scale: reliability and validity when used on preterm infants in Taiwan
1School and Graduate Institute of Physical Therapy, College of Medicine, No. 7 Chun-Shan S Rd, Taipei, Taiwan. Jeng@ha.mc.ntu.edu. tw.
Insights
The Alberta Infant Motor Scale (AIMS) shows high reliability and good validity for assessing preterm infants in Taiwan. However, its predictive ability for long-term motor function is limited.
Area of Science:
- Developmental Pediatrics
- Motor Development Assessment
- Infant Health Evaluation
Background:
- Preterm infants require reliable tools for monitoring motor development.
- The Alberta Infant Motor Scale (AIMS) is a widely used assessment tool.
- Its utility in the Taiwanese preterm infant population needed specific validation.
Purpose of the Study:
- To evaluate the reliability and validity of the Alberta Infant Motor Scale (AIMS).
- To assess AIMS performance specifically for preterm infants in Taiwan.
- To determine the predictive value of AIMS for motor function.
Main Methods:
- Two groups of preterm infants were assessed for reliability (n=45) and validity (n=41).
- Intrarater and interrater reliability were examined through repeated AIMS scoring.
- Criterion-related validity was assessed by comparing AIMS with the Bayley Motor Scale at 6 and 12 months.
Main Results:
- High intraclass correlation coefficients (ICCs) indicated excellent intrarater (0.97-0.99) and interrater (0.97-0.99) reliability.
- AIMS scores showed strong concurrent validity, correlating highly with the Bayley Motor Scale (r=0.78 at 6 months, r=0.90 at 12 months).
- AIMS scores at 6 months moderately predicted motor function at 12 months (r=0.56).
Conclusions:
- The Alberta Infant Motor Scale (AIMS) demonstrates acceptable reliability and concurrent validity for Taiwanese preterm infants.
- The scale's predictive value for long-term motor outcomes is limited.
- AIMS is a suitable tool for current motor assessment in this population.
Background And Purpose:
The goal of this study was to examine the reliability and validity of measurements obtained with the Alberta Infant Motor Scale (AIMS) for evaluation of preterm infants in Taiwan.
Subjects:
Two independent groups of preterm infants were used to investigate the reliability (n=45) and validity (n=41) for the AIMS.
Methods:
In the reliability study, the AIMS was administered to the infants by a physical therapist, and infant performance was videotaped. The performance was then rescored by the same therapist and by 2 other therapists to examine the intrarater and interrater reliability. In the validity study, the AIMS and the Bayley Motor Scale were administered to the infants at 6 and 12 months of age to examine criterion-related validity.
Results:
Intraclass correlation coefficients (ICCs) for intrarater and interrater reliability of measurements obtained with the AIMS were high (ICC=.97-.99). The AIMS scores correlated with the Bayley Motor Scale scores at 6 and 12 months (r=.78 and.90), although the AIMS scores at 6 months were only moderately predictive of the motor function at 12 months (r=.56).
Conclusion And Discussion:
The results suggest that measurements obtained with the AIMS have acceptable reliability and concurrent validity but limited predictive value for evaluating preterm Taiwanese infants.