Timeline for Differences in nlme output when introducing interactions
Current License: CC BY-SA 3.0
8 events
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| Jul 24, 2015 at 14:41 | comment | added | L_T | Thank you for the link and for your answer. Actually I would ask you to have a look to this related question about how reporting the results in the different possible cases of using different models: stats.stackexchange.com/questions/162804/… | |
| Jul 23, 2015 at 12:30 | comment | added | conjugateprior | By more information I meant more information about independent variation in things that are naturally correlated. Experimental manipulation is the usual way, but that's probably not possible here. So just interpret the marginal effects. | |
| Jul 23, 2015 at 12:29 | comment | added | conjugateprior | Is stats.stackexchange.com/questions/31027/… helpful? | |
| Jul 21, 2015 at 13:34 | comment | added | L_T | I think I understood the marginality principle and now my functions are: lme_centroid <- lme(Mode ~ Weight*Height, data = Gravel_ds, random = ~1 | Subject) followed by anova.lme(lme_centroid,type = "marginal"). However, while I get significance for this model for some factors, I do not get significance if I add a third factor in the formula. I do not know how to proceed. You were mentioning that additional information is required in order to disentangle the effects. Can you be more specific please? | |
| Jul 21, 2015 at 0:18 | comment | added | L_T | Thanks a lot, your answer is really informative! However, it is not clear to me how should I proceed in my analysis then. I guess have enough data since I have 19 subjects and 6 repetitions for the investigated stimulus for a total of 114 measurements. I want to know whether participants’ choices of the dependent variable depend on their weight, height, shoe size and the combination of those effects. Would the formula of model 2 be correct? Which results should I take into account then? Those of model 2? What is your recommendation? | |
| Jul 20, 2015 at 21:20 | history | edited | conjugateprior | CC BY-SA 3.0 |
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| Jul 20, 2015 at 15:14 | history | edited | conjugateprior | CC BY-SA 3.0 |
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| Jul 20, 2015 at 15:01 | history | answered | conjugateprior | CC BY-SA 3.0 |