PSYC 212 Lecture Notes - Lecture 10: Analysis Of Variance, Type I And Type Ii Errors, Null Hypothesis

• School: Towson University
• Department: Psychology
• Course: PSYC 212
• Professor: Kukucka

Document Summary

What is a hypothesis: a hypothesis predicts a relationship between variables, or a difference between groups. It should be grounded in previous research: a good hypothesis should . Clearly explain the variables and how they are being measured. Directional hypothesis: hypotheses can be either directional or non-directional (preferred, a non-directional hypothesis predicts a relationship/difference, but does not specify the nature of that relationship/difference. The average test score of open-book students will be different from the average test score of closed-book students: directional hypotheses predict a relationship in a specific direction. Open-book students will get higher scores than closed-book students or. We can predict a relationship between variables. (cid:862)there (cid:449)ill (cid:271)e a differe(cid:374)(cid:272)e i(cid:374) test s(cid:272)ore (cid:271)et(cid:449)ee(cid:374) testi(cid:374)g (cid:272)o(cid:374)ditio(cid:374) a(cid:374)d test s(cid:272)ore. (cid:863) Or we can predict the difference between groups. (cid:862)there (cid:449)ill (cid:271)e a differe(cid:374)(cid:272)e i(cid:374) test s(cid:272)ores (cid:271)et(cid:449)ee(cid:374) the ope(cid:374)-book group and the closed-(cid:271)ook group(cid:863)