PSYC 3380 Lecture Notes - Lecture 6: Null Hypothesis, American Psychological Association, Sampling Error

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3380
• Professor: Jeffrey Spence

Document Summary

Example: the correlation between age and wellbeing is r= . 30, p < . 05: if we were to repeatedly draw samples with the same sample size, 5% will find a result as or more extreme than . 30. From: twenty tips for interpreting scientific claims. (2013) nature, 503, 335-337: significance is significant. Typically, scientists report results as significant when the p-value of the test is less than 0. 05 (1 in 20) . > . 95: the probability that the result is due to chance is < . 05, the probability that the result is due to chance is < . 05, the probability of the data given the null hypothesis is < . 05. Most analyses in psychology use inferential statistics where you test hypothesis about: population parameters: mean = ; correlation using: Sample statistics, such as mean = m; correlations = r, are used to make inferences about populations. Trying to make inferences from our sample to a population.