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Reliability and Validity

Reliability and Validity

Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.

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The Neuro-Sensory Motor Developmental Assessment Part II: Predictive and Concurrent Validity.

Y R Burns, R M Ensbey, M A Norrie

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|July 16, 2014

Summary

The Neuro-sensory Motor Developmental Assessment (NSMDA) effectively tracks infant development. The study found 8 months to be the optimal age for using NSMDA to predict neurodevelopmental outcomes in preterm infants.

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Area of Science:

Developmental Pediatrics
Neuroscience
Infant Assessment Tools

Background:

A progressive evaluation tool for infants and children was needed.
The Neuro-sensory Motor Developmental Assessment (NSMDA) was developed to address this need.
Part One of this paper detailed the NSMDA's content and administration.

Purpose of the Study:

To provide statistical evidence for the validity of the NSMDA.
To verify the NSMDA's predictive and concurrent validity.
To assess the optimal age for NSMDA use in predicting developmental outcomes.

Main Methods:

The NSMDA was administered to 148 preterm infants at 1, 4, 8, 12, and 24 months.
Developmental outcomes were assessed at 24 months.
Statistical analyses were performed to evaluate validity and identify optimal assessment ages.

Main Results:

Early NSMDA scores showed significant correlation with 24-month developmental outcomes.
The NSMDA demonstrated predictive validity (sensitivity/specificity) and concurrent validity.
The 8-month assessment was the most effective for discriminating normal versus abnormal developmental status.

Conclusions:

The NSMDA is a valid tool for assessing neuro-sensory motor development in infants.
The 8-month NSMDA assessment provides the optimal window for predicting long-term developmental trajectories in preterm infants.
This study supports the use of the NSMDA for early identification of developmental concerns.