To establish construct validity, several methods can be employed:
1. Expert Review: Professionals in pediatrics can evaluate whether the test items reflect the intended construct. 2. Factor Analysis: Statistical methods can be used to see if test items group together in a way that reflects the underlying construct. 3. Correlation with Other Measures: The test can be compared with other established measures to see if it behaves as expected. 4. Clinical Trials: Testing the instrument in real-world settings with actual pediatric patients.