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Need assistance for 2-way repeated measures ANOVA for statistical test.

3 years ago in ANOVA , SPSS , Statistical Analysis By Emma

SPSS Statistical Tests

Hi everyone,

I hope someone can help me regarding my dissertation statistics analysis. My research aims at examining the change in carbohydrate oxidation in two different weather conditions(sunny and pleasant) during cycling. The second variable is measuring at high altitude and sea level and the third one is taking note of the measures experienced in two intervals in age range separately where one is 10-20 years old and the other is 20-30 years old.

I believe that 2-way repeated measure ANOVA is the right technique for this type of experiment. However, I am not sure if I’m doing it right.

I have added the weather condition points separately. Like for the first hour, I have used “Weather condition” for the subject factor and clicking define after putting two different levels. After that, I add the data of measurement in boxes named as “1 hour/sea level” and “1 hour/hypoxia”, and add “age” into the between subject factors. Am I doing it correctly?

Thanks in advance for your time and suggestions.

All Answers (4 Answers In All)

By Amith Answered 3 years ago

Hi Emma, as much as I understood you are working on a 2x2x2 design (Weather x Altitude x Age). In this case, age is a between-ss factor; whereas, weather is the repeated measure or (within-ss) factor. However, I am not able to identify whether altitude is the between-ss factor or within factor. Well, in any of the two cases, you should go for GLM when working with SPSS. Go for analyse, then GLM and then repeated measures to obtain the ANOVA result with classical mixed design. Otherwise, you can go for the multilevel modelling approach by using the mixed command. Go on analyse, then mixed models and then, linear. Check out the examples by searching for “UCLA SPSS Repeated measures”. It can provide you with a better understanding.

Replied 3 years ago

By Emma

Thank you so much for your reply. And Altitude is considered within subjects as both men and women are required to do cycling at both sea level and high altitude.

By Joana Answered 3 years ago

Emma, I would like to suggest to you a much simpler approach then the one you are currently using as I myself used that approach in my last research and it worked really well. Please consider going through the books named Montgomery Design and Analysis of Experiments and Lander R for everyone. These are available in the z-library easily and include information regarding factorial designs and repeated measures. Search ANOVA as regression and look through the suitable Lander references. It might seem a lot of work and difficult at first too, but it really is simpler and easier. I hope it helps you. Cheers.

By Taylor Answered 3 years ago

Hi Emma, I would suggest you to choose ANCOVA to get a better result.

By Rafael Answered 3 years ago

Hi Emma, I would rather suggest you to go through this book; Sports Research with Analytical Solution Using SPSS. It will help you in understanding the step by step process of performing SPSS analysis and data interpretation. In case you couldn’t find the book let me know, I can share it through email as well. Happy to help.

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