POL 51 Lecture Notes - Lecture 5: Law School Admission Test, Content Validity, Face Validity

• School: UC-Davis
• Department: Political Science
• Course: POL 51
• Professor: C H R I S T Ycahill

Document Summary

Measurement: how do we determine values of x and y (and z) Measurement: systematic observation and representation by scores or numerals. Operationalization: the process of defining concept to make it measurable in the form of variable. The method of operationalization can be different but it"s how you make your argument that allows you to select one method. Reliability: consistency or repeatability of a measure ex: weight scale. Validity: how accurately a measure represents the concept it is supposed to measure; ex: midterm exams or lsat. Face validity: how well it appears to measure the concept. Content validity: how well it captures the essential elements and excludes unrelated elements. Construct validity: how well it agrees with related measures according to relevant theories. Leading questions reduce the validity of the matter. Precision: a measure"s level of refinement, exactness or specificity ex: age.