PSYC 60 Study Guide - Midterm Guide: Repeated Measures Design, Sampling Distribution, Dependent And Independent Variables
Document Summary
Mean of sample means = mean of population. M or m is expected value (m is unbiased) o o o. N: normal = n (n > 30) Standard error = standard distance between sample mean and pop mean. Also normal if population it is drawn from is normal. Type i prob of rejecting ho when treatment had no effect (alpha) Type ii prob of not rejecting ho when effect exists (beta) Dev = unchanged o o o: normal sampling distribution o o o. Z = more likely to reject ho. Ser = less likely to reject ho n = more likely to reject null. Sum or probabilities of being in critical region on both ends. T-score test: do not know population standard deviation o. T = o: degrees of freedom, df = better estimate of z-score, df = normal , df = less variability, df small = flatter, more spread out.
