how does the likert scale measure reliability how many aspects to find the overall score how to test reliability of index what is the general idea of an index? what kind of index is b how to measure reliability of concept how to test reliability of an index how to test reliability how is the reliability of an index tested what is the overall scores for a concept? how to check reliability of an index which scale is used to measure reliability how to measure reliability of an index how to calculate the reliability of a single score what is the overall score of an index how to find reliability on the likert scale how to test reliability of an index how to test reliability of index how to test reliability of an index when the index is composed of distinct facets? what is the overall score in likert scale