PSYC 2030 Lecture Notes - Lecture 3: Likert Scale, Variance, Content Validity

• School: York University
• Department: Psychology
• Course: PSYC 2030
• Professor: Raymond Mar

Document Summary

Good for long term effects that can"t be manipulated. None is a pure measurement of psychological phenomena. All measurements is a combination of two things; the variability we are interested in. True variance - the proportion the variability i am interested in. Useful when you don"t know anything about a topic, because you don"t want to use biases and expectations that can limit your thinking. When we are critiquing research, we want to be very savvy about new items, Helps to catch people who would just agree with everything. Those who agree to everything - acquiescence. Linguistic ambiguity - word everything so it is as clear as possible. Bad thing: you might agree to one part and disagree to the other part, so you don"t know how to answer that question. I. e i really enjoy both the thrill and expense of skydiving . The way the question is worded, it is trying to bias you in a specific way.