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  • Title: Reliability and validity of the Peabody Developmental Motor Scales-second edition for assessing motor development of low birth weight preterm infants.
    Author: Tavasoli A, Azimi P, Montazari A.
    Journal: Pediatr Neurol; 2014 Oct; 51(4):522-6. PubMed ID: 25266615.
    Abstract:
    BACKGROUND: Motor developmental impairment is a common symptom in low birth weight neonates. The Peabody Developmental Motor Scales-second edition is an instrument for measuring motor abilities in these infants. This study aimed to validate the Peabody Developmental Motor Scales-second edition in Iran. METHODS: This was a prospective clinical validation study. The reliability and validity of the original measure were performed in accordance with published guidelines. To collect data, a total of 88 infants including 58 LBW infants and 30 normal birth weight control patients were included in the study, and the measure was completed for them. The Bayley Scales of Infant Development, second edition, and the Motor Scale (Psychomotor Development Index) also were completed for the study samples. To test reliability, the internal consistency was assessed by Cronbach alpha coefficient. Test-retest reliability was performed using Intraclass Correlation Coefficient at 1-week interval. Validity was evaluated using known groups comparison and criterion validity (convergent validity). RESULTS: The Cronbach alpha coefficient for the Peabody Developmental Motor Scales-second edition was 0.92. Further analysis also indicated that test-retest reliability was excellent (Intraclass Correlation Coefficient = .98). Validity as performed by known groups comparison indicated satisfactory result. The instrument well discriminated among subgroups of the study samples that differed in birth weight. The Psychomotor Development Index score correlated strongly with the Peabody Developmental Motor Scales-second edition (r for Fine Motor Scale = .91, P < 0.001 and r for the Peabody Developmental Motor Scales-second edition Gross Motor Scale = .93, P < 0.001). CONCLUSIONS: The findings suggest that the Iranian version of Peabody Developmental Motor Scales-second edition is a reliable and valid measure. It can now be used in clinical settings for assessing motor development in low birth weight infants.
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