Questions tagged [intercept]
The intercept in regression-type models is the value of the Y variable when all X variables are 0.
379 questions
1 vote
0 answers
26 views
Intercept in a detrended time series regression
I have been reading on running regressions on a time series. In the section for using detrended data (running regression of explanatory and explained variables on time alone first, and then regressing ...
- 163
3 votes
2 answers
367 views
OLS with and without intercept
Consider the linear models $$ \tag 1 Y=\beta_0+\beta_1X+\varepsilon \quad E(\varepsilon)=0 \quad X\text{ independent of } \varepsilon $$ and $$ \tag 2 Y=\beta_1X+\varepsilon \quad X\text{ independent ...
- 1,016
1 vote
1 answer
176 views
TWO WAY ANOVA - Parameter Estimates Interpretation
Parameter estimates table produced in TWO WAY ANOVA: When I'm interpreting my parameter estimates table I've been led to believe that the intercept is the overall grand mean of the data? Is this ...
- 71
1 vote
0 answers
72 views
Is there a spurious correlation between slope and intercept of a simple linear regression under constrained x and y? [closed]
I am trying to determine if I can use the y-intercept of a simple linear regression to predict the slope but I want to confirm whether the y-intercept is spuriously correlated with the slope. Would ...
- 11
4 votes
2 answers
421 views
Behaviour of regression toward the mean
I have a dataset for length of right and left foot in 801 people, males and females. This is a teaching dataset without any specific question or peculiarity behind it, as far as I can tell. Here are ...
- 6,043
1 vote
0 answers
84 views
Can I compare intercepts between GLMs and GLMMs to estimate the effect of a random effect? [closed]
I’m working on a statistical analysis where I’ve run both generalized linear models (GLMs) and generalized linear mixed-effects models (GLMMs) on the same dataset. Can I interpret the difference ...
- 11
1 vote
1 answer
74 views
Interpretation of Poisson regression model (outcome variable - dietary diversity)
I would like to get some insights on how to interpret the Poisson model using the results shown in the picture. This is how I interpreted it: For every one unit increase in the number of cooked food ...
- 11
3 votes
1 answer
333 views
Intercept significant, but confidence intervals around its standardized β include 0
I ran a HC (‘robust’) regression. The intercept is significant, which is reflected in the confidence intervals around the unstandardized betas. However, the CIs around the standardized β are quite ...
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