HLTH 200 Lecture Notes - Lecture 3: Inter-Rater Reliability, Convergent Validity, Construct Validity
Document Summary
3 the theory of measurement: construct validity. Measurement error: what is random error, what is systematic error, reducing measurement error. Types of reliability: inter-rater or inter-observer reliability, test-retest reliability, parallel forms reliability, internal consistency reliability. 4 survey research: constructing the survey. 6 qualitative and unobtrusive measures: qualitative measures. Developing detailed stories to describe a phenomenon. All qualitative data can be coded quantitatively. All quantitative data is based on qualitative judgment. Measurement is the process of observing and recording the observations that are collected as a part of a research effort. Construct validity versus measurement validity: measurement validity is an offspring of construct validity: construct validity focuses on maximizing concordance between variables (independent and dependent), or the approximate truth of the conclusion that your measure accurately reflects its constructs. In other words, it is the degree to which inferences can legitimately be made from the operationalizations to the constructs in which they are based.
