Fuck Cars
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Do you think the paper drew sensible conclusions, or do you just not like my arguments?
This is fair enough, my background is not in social research so to me 0.5 is a moderate correlation. Not sure what you mean by the 'bottleneck' here, are you suggesting that the correlations could be higher with a different survey?
Given that the explanatory variables are in some cases more strongly correlated with each other than the response, do you think the model without interactions is likely to be an appropriate way to analyse the relationship between the response and the explanatory variables? It doesn't at all make sense to me to do one single regression model and say "The F test says this is a good model, so the explanatory variables explain the response", especially with a relatively low R^2, and given the fact that there is evidence of multicollinearity presented alongside!
The paper presents the fact that they have done a regression model with a few good significances without any real analysis of if that model is good. We don't see if the relationships are linear, we don't see if the model assumptions are met. Just doing a regression is not enough, in my opinion.
There's no need to be rude. It's perfectly acceptable to disagree with me, but you could do it politely.
Yes, I'm well aware, although I'm not sure what your point is. They haven't done any analysis of variance.
My point is that they haven't made any effort to find a model that best fits the data, they have just taken all the available variables, smacked them into python or R or whatever, and written down the statistics it spits out. There's no consideration in the paper given to interpreting the statistics, or to confirming their validity.
From the study:
Not only was p-value for age clearly not significant, the confidence interval for the coefficient was [–.21, .17]..... This includes 0 ffs! There's no evidence here that there is greater endorsement of the car items in younger respondents. Why was age even included in the model in the first place, given that the correlation was near 0?
Like I said - there is some evidence here of an interaction, I'll concede that in context the correlation isn't bad for 2 of the dark tetrad items, Wild and Crafty, but the analysis they have used to present this information is not well thought out or presented. Personally I don't think that a linear regression model is even the right way to analyse the data they have, I especially don't think this regression model is a good way to analyse the data.