To differentiate between different types of measurements and to create the appropriate research designs using these concepts.To describe sources of variation in measurements.To explain the different components of validity (face, content, construct, and criterion validity) in the context of measurements.To explain the terms validity, reliability, and responsiveness and to be able to describe these properties for a given measure.To explain types of variables and scaling.To explain the importance of measurement properties to health outcomes research.Measurements: Validity, Reliability, and ResponsivenessĪlexandra M.