Plan to provide evidence for reliability (for example, internal consistency and test/retest)

Plan to provide evidence for reliability (for example, internal consistency and test/retest)

For all researcher instruments provide: • Basis for development (literature sources or other bases for development, such as a pilot study). • Plan to provide evidence for reliability (for example, internal consistency and test/retest). • Plan to provide evidence for validity (for example, predictive and construct validity). • Establish sufficiency of instrumentation to answer research questions.