Background and Purpose. The goal of this study was to examine the reliabili
ty and validity of measurements obtained with the Alberta Infant Motor Scal
e (AIMS) for evaluation of preterm infants in Taiwan. Subjects. Two indepen
dent groups of preterm infants were used to investigate the reliability (n=
45) and validity (n=41) for the AIMS. Methods. In the reliability study, th
e AIMS was administered to the infants by a physical therapist, and infant
performance was videotaped. The performance tvas then rescored by the same
therapist and by 2 other therapists to examine the intrarater and interrate
r reliability. In the validity study, the AIMS and the Bayley Motor Scale w
ere administered to the infants at 6 and 12 months of age to examine criter
ion-related validity. Results. Intraclass correlation coefficients (ICCs) f
or intrarater and interrater reliability of measurements obtained with the
AIMS were high (ICC=.97-.99). The AIMS scores correlated with the Bayley Mo
tor Scale scores at 6 and 12 months (r = .78 and .90), although the AIMS sc
ores at 6 months were only moderately predictive of the motor function at 1
2 months (r = .56). Conclusion and Discussion. The results suggest that mea
surements obtained with the AIMS have acceptable reliability and concurrent
validity but limited predictive value for evaluating preterm Taiwanese inf
ants.