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# PSY245/5401: STATISTICS ASSESSMENT 2 (2009/10) This is a GROUP coursework. Groups of between one and four people are allowed. Please submit just ONE...

We would like to know how to conduct a post hoc analysis on the significant interaction using a within subjects 2x2 ANOVA in spss in question one in the document attached.

Thank you so much

PSY245/5401: STATISTICS ASSESSMENT 2 (2009/10) This is a GROUP coursework. Groups of between one and four people are allowed. Please submit just ONE piece of work per group. All members of the group will receive the same mark , Analyse fully the data for ONE of the experiments below. You may use any appropriate statistical methods which you have met on PSY245 (or elsewhere). Write up the analysis with the following section headings : Statistical Methods, Results, Conclusions/Discussion. State the hypotheses in the Methods section and, in the Conclusions/ Discussion section, comment on the design of the experiment and whether it could have been improved . Don’t forget to state and check all assumptions made. APPEND the appropriate SPSS analysis and refer to all the tables in it in the main report. Any important tables, such as descriptive statistics, and/or graphs should be in the main report . Maximum length of report: 4 pages (double-spaced, font size 12) plus appendix of SPSS output. Deadline for submission of coursework : 12 noon Tuesday 20 th April 2010
Experiment 1 A sports psychologist designed an experiment to investigate the effects of two factors on a male athlete’s performance: the presence or absence of ‘supporters’ and the presence or absence of other athletes. A total of 30 junior athletes were timed over a 400m run on four occasions, separated by an interval of one week: Run 1: On their own (no other athletes) and with no supporters. Run 2: On their own with supporters Run 3: In a race but with no supporters. Run 4: In a race and with supporters. The table below gives the times for the 400m runs (in seconds). Note that the times for one of the runners were not included as the mechanism recording the times for this runner was deemed faulty. Investigate whether there is any evidence of effects of the presence of supporters, the presence of other athletes or any interaction between them. Run Athlete 1 2 3 4 1 54 53 57 54 2 64 67 59 55 3 49 55 55 49 4 58 56 56 50 5 53 59 54 48 6 50 58 56 47 7 56 56 57 51 8 55 53 51 47 9 57 53 52 53 10 52 56 55 49 11 59 59 58 53 12 55 53 50 50 13 56 55 49 53 14 52 57 50 53 15 59 54 59 51 16 54 55 54 48 17 53 49 47 51 18 66 59 54 50 19 54 58 56 49 20 55 55 54 51 21 58 53 57 47 22 51 51 48 47 23 57 56 50 50 24 68 62 57 56 25 54 52 51 50 26 62 60 57 55 27 61 65 63 59 28 55 50 55 50 29 53 52 47 47
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