# binary logistic regression analysis (method=ENTER) model has all beta values are statistically non-significant

My binary logistic regression analysis (method=ENTER) model has all beta values are statistically non-significant.

Should I include these predictors in the final binary logistic regression equation?

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This is a very broad question about variable selection. It would be helpful if you asked a more specific question. Or, you can see one of the many other questions on this site concerning the topic of model selection - stats.stackexchange.com/questions/tagged/… – Macro Jul 16 '12 at 15:43
@Macro You are correct that the question can be interpreted broadly and therefore can be improved. However, Michael Chernick has argued, with some merit it seems to me, that this is a natural question with a natural interpretation. As such I would like to suggest it deserves a warmer welcome and more constructive guidance for eliciting the information needed to narrow it down. (Such as--Ann--indicating the purpose of this analysis, what diagnostic plots and tests you have considered, how much data and how many variables you have, and more.) Could you and Michael cooperate in doing this? – whuber Jul 16 '12 at 19:29
In SPSS Method=ENTER means that all variables specified are considered simultaneously, so no variable selection. See e.g. ats.ucla.edu/stat/spss/output/reg_spss.htm – Momo Jul 16 '12 at 19:29
@Ann This question has been downvoted because it lacks critical information to elicit unchallengeable answers. Often times, negative votes are a way to indicate to the OP that the question might be improved in many ways, and they can be removed upon clarification. Some suggestions were offered to you, and I do hope you will consider them. (Also, please make sure to register your account on this site.) – chl Jul 17 '12 at 8:25

More importantly than the unclear aspects I just pointed out is what is the point of this endeavor? Is it to figure out what individual predictors are important? If so, some thought about collinearity would have to be given if they are all entered into the same model. Is it to figure out whether the variables as a group are important? If so, we have a simple $\chi^2$ test and we're done. The point is that two rational people could interpret this question in very different ways, which is part of the definition of the 'Not a real question' close vote reason, which is my entire point. – Macro Jul 16 '12 at 16:45