PSYC58H3 Lecture Notes - Lecture 7: Analysis Of Variance, Descriptive Statistics, Repeated Measures Design
Document Summary
Psyc58 lec 7 data analysis & assignment 2. Spss needed license to run: either do it in class (after lecture, use campus computers (library/computer lab, download a free trial at home. Remove extreme values from your data (e. g. , rts that are too fast, too slow), individually for each participant. Remove responses that are not representative of the processes you are investigating. Too slow: typically, remove rts that are more than 2. 5 or 3 standard deviations from the mean. Can use the grand mean for each participant, or can use the mean of each condition for each participant. A reasonable approach: first remove any rts that are above a certain threshold (e. g. , above 2000 ms), and then remove rts that are 2. 5 standard deviations above the mean rt for a particular condition, for each participant separately. Can also start immediately with removing rts that are 2. 5 standard deviations away from the mean.
