PY 211 Psych 2110
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This 1 page Study Guide was uploaded by KhloNotes on Friday October 14, 2016. The Study Guide belongs to Psych 2110 at University of Alabama - Tuscaloosa taught by Andre Souza in Fall 2016. Since its upload, it has received 5 views. For similar materials see Elem Statistics Business in Psychology (PSYC) at University of Alabama - Tuscaloosa.
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Date Created: 10/14/16
Key: Bold/Italic = important information, Highlighted = vital for test From 211 Elementary Statistical Methods (Psychology) ; Professor Souza/Adams Important Notes: - Review Chapters 3-4 Topics (Standard Deviation, Z-Scores, Null Hypothesis, and Standard Error) - M = /X = Mean - S = SD = Standard Deviation - If the symbol is Greek, it refers to the population - Professor Adams prefers concepts to math, so be prepared to be asked questions with limited numbers. Refer to his slides for exam example questions Standard Error v. Standard Deviation - Standard Deviation = z-score of a single raw score from a sample - Standard Error = t-value or number of Sm or Sx that differs from the population *Standard Error will always be smaller than Standard Deviation because outliers are cancelled out Null Hypothesis ● Type 1 Error = We can reject the null (H ) whe0 he null (H ) is t0 (false positive) ● Type 2 Error = Failure to reject the null (H ) wh0 the null (H ) is 0 se (false negative) *preventable with more research p vs α - p = post - hoc, A conclusion reached after the fact - α = ad - hoc, A conclusion made before experimenting - Both refer to probability - Comparing α to p reaches a conclusion - p-value = the probability of the observed finding or the extreme finding being accurate in terms of Ho (Null Hypothesis) - α-value = the maximum value or limit to conclude a significant effect Dependent Samples Test/Repeated Samples Test/Paired Samples Test - The goal is to find if the mean difference is significantly greater than zero Happy Studying!!
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