Mn581 age appropriate health maintenance screening and associated
The reliability and validity of any tool must be thoroughly assessed before use. To do this, it is important to consider the type of instrument being used (i.e., self-report questionnaire, interview, observation) as well as the population being studied. In terms of reliability, an assessment may involve examining the internal consistency (Cronbach’s alpha), inter-rater reliability (intra-class correlation coefficient), or test-retest reliability (Pearson correlation coefficient). For validity, one might look at content validity (face validity or expert opinion) or construct validation (concurrent/discriminant/predictive correlations). Ultimately, it is up to the researcher to decide if a tool’s reliability and validity are acceptable for their particular research goals.