Linked Questions

81 votes
0 answers
64k views

How can a regression be significant yet all predictors be non-significant? [duplicate]

My multiple regression analysis model has a statistically significant F value however all beta values are statistically non-significant. All the regression assumptions are met. No multicollinearity ...
Serene's user avatar
  • 811
0 votes
1 answer
3k views

Multiple Regression - Significant model but one variable does not significantly predict the behaviour. [duplicate]

Multiple Regression - Found a Significant model but one variable does not significantly predict the behaviour, how to explain this ? Also attaching correlation table.
MengZhen Lim's user avatar
0 votes
1 answer
2k views

Difference between F-test and T-test on OLS [duplicate]

I was running a regression with 1000 observations and 7 explanatory variables (with a constant term included as a "variable"). So, the population model initially stated was: $Y_{i} = \beta_{1} + \...
S. Cow's user avatar
  • 373
1 vote
1 answer
813 views

How can I have a significant overall F-test but any significant P values for the individual coefficients? Graphical intuition, please? [duplicate]

From http://blog.minitab.com/blog/adventures-in-statistics/what-is-the-f-test-of-overall-significance-in-regression-analysis: Typically, if you don't have any significant P values for the ...
Luis's user avatar
  • 595
2 votes
0 answers
584 views

Contradiction in F-test and t-test [duplicate]

I have generated a summary for a particular multiple linear regression ...
rrr's user avatar
  • 203
1 vote
1 answer
294 views

Omnibus test significant but no individual factors are significant [duplicate]

I'm running a multiple logistic regression in R. Im predicting whether or not a stimulus was seen from the number of dots in the stimulus (sample_numerosity; 4 ...
HereItIs's user avatar
  • 121
1 vote
1 answer
269 views

Interpretation of a regression where two variables predict a third variable individually but not when entered together [duplicate]

I have a situation where two variables when entered into a regression model independently, both predict a third variable, but when I entered both those variables into the model together, neither one ...
neij's user avatar
  • 11
2 votes
1 answer
134 views

When non-significant interaction effects make a significant main effect non-significant [duplicate]

Suppose that I have two IVs (AnxietyLevel & experimental conditions (dummy coded as 0 and 1), and two control variables (Age & Gender) and one DV (mean score on a questionnaire). And I am ...
user240313's user avatar
0 votes
0 answers
105 views

ANOVA is significant but coefficients are not? [duplicate]

I was wondering how I would report this? My ANOVA is significant but when I look at the model and the different predictors, there is no significance?
Will's user avatar
  • 1
1 vote
0 answers
65 views

Dissertation Results. X and Y non-correlation, but then X significantly predictive in regression model. Why? [duplicate]

I just finished my dissertation results and trying to interpret them and very confused. Basically, X and Y are not correlated but then when I put X in my regression model with a few other variables X ...
Kay's user avatar
  • 11
1 vote
0 answers
63 views

What does it indicate if a multiple regression model is significant but none of the individual predictors are significant? [duplicate]

I have a feeling that this is a stupid question, but googling around I haven't found an answer to it. Simply: What does it mean if a multiple regression model is significant but none of the ...
JD_'s user avatar
  • 11
0 votes
0 answers
62 views

Multiple linear regression: F-test significant, but most predictors are not [duplicate]

In a multiple linear regression, what is the reason for the most predictors to be non-significant ($p > 0.05$), but ANOVA shows significances? What could be some of the reasons? Or a calculation ...
0211's user avatar
  • 1
0 votes
0 answers
44 views

Significant lineal model (p value) but no significant parameters [duplicate]

I´m interested to know if it´s possible (and what it means) to obtain a significant linear model regression (p value=0.008) with coefficients fitted are not significant (p>0.05)?
user25219's user avatar
0 votes
0 answers
32 views

Is this model significant? [duplicate]

I fitted a quadratic model on my data and got the following output: The Pr (>|t|) values were not significant (p<0.05) but the overall p-value of the model was. Is my model significant or not?
Zita Zimmermann's user avatar
0 votes
0 answers
30 views

Interpreting Multiple Regression [duplicate]

I am working on my thesis and I had to do a multiple regression. I have only 45 samples and I checked that there were not problems of multicollinearity (VIF < 3) and the residuals are normally ...
Dam's user avatar
  • 1

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