Jim, how to conduct a test to figure out where these differences lie? Do you have a video on it? OR can you please guide on how to do it cause no one has actually published anything much on that. It is always very vague and hard to understand.

Very happy to buy u a beer or more if you could guide me through this one. Please. Thank.

Great!

Thanks!

Glad it helped!

+franci188 Hi - you need to do a separate independent variable for each of your dependent variables. So, for BMI, it seems you have a 3-way mixed design. Your factors here seem to be Exercise (with 2 levels?), Diet (with 2 levels?), and Time (with 3 levels: baseline, 6-week, 12-week). Time is a repeated measure (within-subjects), whereas Exercise and Diet I assume are between-subjects factors. Does that make a little sense?

Hi Jim, yes it does help. I'm wondering if you have any tips on how to write the data analysis section and the results?

Jim Grange Hi Jim, yes it does help. I'm wondering if you have any tips on how to write the data analysis section and the results?

+franci188 Ummm, well that is quite a broad question, so I am not sure where to start with that one. Is this for your degree course? Do you have any resources from your lecturer for you to start with?

Jim Grange Yes Jim, I'm doing a masters and since i finished uni a few years ago... i haven't done any stats for a very long time. The lecturer told us to look at research papers on how to write it up. We were shown where to click to the anova and t-test but we weren't how to report anything...

Hi - it depends on what you mean by "mood conditions". If you mean there are 4 ways to manipulate mood, then it's a 2-way ANOVA with the factors mood condition and time. How to do it in SPSS all depends on whether the factors are manipulated within subjects, between subjects, or whether it's a mixed design.

Hi. "Time" is one of your factors, yes (with 2 levels: week 1 and week 2). I'm not sure what you mean by pre- and post-exercise; this could be another factor with 2 levels, or it might just be one dependent variable. If it's the former, you have a 3 (subject group) x 2 (time) x 2 (pre/post exercise) MIXED design, because subject group is between subjects and the other two factors are repeated measures. If it's the latter, you have a 3 (group) x 2 (time) mixed design. Hope that helps.

Thank you for the response. Just to clarify my experiment with an example: On week-1, subject-1 will be measured for maximum leg strength (pre-strength-condition_1), then undergo 30 min of one type of fatiguing exercise (condition-1), and at the end of the 30 minutes will be measured again for maximum leg strength (post-strength-condition_1). I want to find out the loss of strength caused by the 30 min exercise ( this is the difference between the two measurements).On week-2, the same subject will undergo the same experimental setup, this time using a different 30 min fatiguing exercise regime (condition-2). I will then have two measurements on week-2 (pre-strength-condition_2 & post-strength-condition_2) and can calculate the loss of strength. I want to know which fatiguing exercise condition caused the greater loss of strength. This experiment will be done for all subjects in the three groups (cricketers, football players and hockey players). I want to know if loss of strength in each condition is different by group. 1) Does this still qualify as a 3 (subject group) x 2 (time) x 2 (pre/post exercise) MIXED design as you suggested? 2) If I add a third time point for repeated measurements (week-12), will that be 3x3x2 MIXED ? Apologies for the long message!

Saleem Khan Yes, don't use SPSS graphs. They are horrible. I have a video showing you how to format a graph in Excel - check my channel.

+rikolovee Hi there - yes, you are correct. Although, you might not wish to trust too much the results with such a small sample size :)

+Jim Grange , And how do you perform post-hoc tests in this case? I use SPSS 17.0, and after selecting repeated measures, there´s no post-hoc options to select!

Good information here: www.uvm.edu/~dhowell/StatPages/More_Stuff/Missing_Data/Missing.html

It would be a mixed factorial ANOVA. The key statistic is the interaction between group and time.

@@JimGrange. that will tell us that change in pressure compared to previous recording is significant but will it tell that 1 group is significantly better than other?

@@fazeelzubair2787 I do beg your pardon; I misread your question. In that case it's the same analysis but the key statistic is the main effect of group.

@@JimGrange. thank you

+Osama Mahmoud M. Alomari That's very odd! Do you have a link to an image of your table so I can look? Or, email it to me.

+Jim Grange Hi Jim, Thank you for your interest. Could you please provide me with your email?? I just cannot put the results in public for not. Thanks!

+Osama Mahmoud M. Alomari I don't wish to paste my email online as robots can scrape that information. Search my name together with the word Keele and you will find me :)

+Jim Grange I have just emailed you the file. Thanks!

Hi - it's impossible to tell from the information you give, as you don't mention whether the conditioned and treatments factors are repeated measures or not. If they are ALL repeated measures, then you have a 3-way repeated measures design; if at least one is between-subjects, then it's a 3-way mixed design. Hope that helps!

Jim Grange Thanks Jim! Just to clarify, my results will be repeated measures (proportion of time in correct area for 7 consecutive days), and I will have those results over the 7 days for both factors: conditioned and treatment. Those 2 factors also have 2 levels (conditioned: trained and not trained) and (treatment: food 1 or food 2) so I will have results for 4 groups (trained+food 1; trained+food 2; untrained+food 1 and untrained+food 2). So from what you said as I will have 2 between group factors (treatment and condition) and the repeated measure is the within subjects factor so its a 3-way mixed design??? Thank you again!!!

Jim Grange yes they are, thanks

Hi, yes in that case it is a 3-way mixed design :)

Hi Penny - What is the "Pers test A/B@" Do all participants see visual and audio conditions?