PSYC37H3 Lecture Notes - Lecture 5: World Health Organization, Concurrent Validity, Predictive Validity
Document Summary
*it"s possible that a very simple equations might be on midterm. There are diff ways we can think of validity (ie reliability ); just becase something is reliabile doesn"t mean it"s valid. What were to happen if he got off a scale and stepped on a new scale, and it says 300 pounds. The types of decisions we make based on tests should be meaningful, useful, appropriate. You can consider it a unitary value. When you put the tests out there, other people will start using that to measure some things. It"s not as easy as it seems (profs, other students, teachers, etc) Test validity hinges upon the accumulation of research findings. For ex, transition from the third to the fourth edition of the wechsler adult intelligence scale (wais) You"re supposed to use the most clearly validated test out there.
