PSYB01H3 Lecture Notes - Lecture 5: Convergent Validity, Concurrent Validity, Inter-Rater Reliability
Document Summary
Week 6 lecture #5 monday, june 15, 2015. Midterm: class, essay question = point form, precise, 25, 10, 10. Explore the variables: exercise and cardiovascular disease: looking at people as they are. You: cannot infer causality because of cardinational (?) study. When the variables cannot be held constant. Optimal and non-optimal time of day in aging research. Subjects: young and old tested at random times. You have strong evidence when you use multiple methods and they"re all pointing to the same answer/direction. Validity = truth and accurate representation of information. Internal validity: ability to draw conclusions about causal relationships from our data, experimental. Two general threats to internal validity: when control groups are absent, when comparisons are made between non-equivalent groups. External validity: extent to which the results can be generalized to other populations and settings, consider cohort effects/time of day effects. Note: despite their artificial setting, lab experiments often have great value for understanding human behavior.
