KP290 Lecture Notes - Lecture 18: High-Protein Diet, Random Assignment, Factorial Experiment
16 Mar 2017
School
Department
Course
Professor
Document Summary
Research design of convention: pre, true, and quasi experimental designs. Notations: r = random assignment to groups, o = observation or test, t = treatment, _ = groups are intact rather than randomly assigned. Choose appropriate research design: pre experimental. None of the designs have random assignment. T = studying with friends, o = perf on a test: no causation can be stated. This design compares two groups, one of which receives the treatment and one which does not. Unable to determine whether any diffs between o1. 4. and o2 were caused by treatment because groups could have been different to start. 5. tutorial before the 3rd term test (the treatment) while one group does not. E. g. , one group of kp 290a students attend a. How effective are pre-experimental designs for answering research questions? o. Not a valid means of answering research questions.
