Multiple Regression - SPSS (Brief)
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- Опубликовано: 23 авг 2024
- I demonstrate how to perform a multiple regression in SPSS. This is the brief version of the tutorial. If you want to learn more important information about doing a multiple regression, you should check out my multi-part youtube series on my channel.
Your videos are great! These tutorials are getting me through my psychology dissertation! SPSS is a great tool when you know how to use it! THANK YOU!!
Yes, I do. Search for 'Logistic Regression - SPSS (part 1) how2stats' in the youtube search engine.
The videos are extremely helpful. Thanks so much.
thank you so much! clear, concise, and highlighting all the important aspects.
Hi,
Thank you very much for replying. I have read about effect coding and I think dummy coding will probably be sufficient for my analyses. However, your point about effect coding raises an additional question:
1) Is effect coding necessary/possible in logistic regression? I think the answer to this is 'no' but I would be grateful for your advice.
Also, I would still really appreciate clarification on my first 3 queries:
2) If you are entering 2 sets of categorical variables in a regression, how does SPSS know which baseline reference belongs to which dummy set?
3) When considering the resultant regression coefficients for the dummies of one category, why can't / doesn't one interpret them as the effect of "dummy vs non-dummy"? Why is the interpretation "dummy vs reference"?
4) Related to question 3) above, why can't I enter k dummy variables for a categorical variable with k categories (ie enter them as separate binary variables) and consider the results for each coefficient as "dummy vs non-dummy"?
I would be really grateful for your advice on this!
Very informative, thank you.
No, stepwise is only one method. Another popular method is 'enter'. You just have to be careful to notice which variables included in the model are statistically significant and which ones are not. With stepwise, only statistically significant predictors will be included in the model.
In the video you mention that you have a more in-depth series about multiple regress, would you be referring to your "Multiple Regression - Interaction- SPSS" series?
I have a question, if you have multiple items in dependent variable. and hence we can put one Dependent variable so how can i merge all dependent variable items, so i can put them in dependent box as one dependent variable
Hi sir
it is an urgent question
I have a linear model in this form'
y=b0+ b1 C+b2 P+ b3 CP
I know who to create linear regression model for the above but my question about the addition of the fourth term
can I consider this as an independent variable similar to C and P and then compute CP. Is that possible or not, please?
Hi, I have a question to ask you about stepwise regression, I have 3 values of "y", and have 8 independent variables which also n=3, I tried to perform stepwise regression, but there is just a dot in the "Sig" column. What is wrong with it? It is too small datasets to do stepwise regression? Thank you!
all my independent variables are coming under predictors what is that supposed to mean? pls help
Do you provide the data file to trial. Second: is there an index we can follow? Great work. Thanks.
Thank you. The data files are not available for my hows2stats channel. However, my how2statsbook channel has the data files available (for a small fee): www.how2statsbook.com/p/data-files.html
Do you have to use Stepwise method when doing this, or is it possible to interpret the impact the independent variable had on the dependent variable without it?
can u please tell me how to calculate factor score of a factor consisting of a number of correlated variables
how did he get his anova table in there? I did everything that he did and he had that table which wasn't present in my output
Hi,
Really great videos on RUclips!
Can you please help me with 2 questions (both to do with dummy variables) -
1) If I have 2 sets of nominal variables (eg ethnicity [white, Indian, African] and smoking status [current smoker, ex-smoker, non-smoker]) and I turn each set into 2 dummy variables (+1 baseline reference variable for each set) for entry into a multiple linear regression in SPSS. How does SPSS know which baseline reference variable to use for which set?
At least in logistic regression you have to option to label each variable as categorical (so there seems to be some way of grouping them) - this does not exist for linear regression.
For my example given above, does it mean that the multiple regression would produce 2 constants?
2) If I recode ethnicity (White, Indian, African) into 3 dummy variables, why can't these be treated as 3 separate binary predictor variables and entered into the model? Ie why can't I enter 'White / Non-White', 'Indian / Non-Indian' and 'African / Non-African' : and thus why can't I interpret the resultant coefficients as White compared to Non-white, Indian compared to Non-Indian and African compared to Non-African?
When you have three or more levels in your nominal variable, you would typically use 'effect coding' if it is a predictor in a multiple regression. I don't have a video on effect coding, however, there are many sources on the net relevant to the topic.
Hello there,
Do you have any tutorials regarding non linear regression calculation in SPSS +how2stats ?????
thank you so much
it is possible that if i get the same value of r squared,durbin watson,f-test,TOL,VIF for all step in stepwise bacward and forward??then, which step is the best? forward or backward??
Dear Sir/ Madam,
Thanks so much for the useful tutorial videos. And I would like to know as to whether do i need to include the control variables together with the independent variables for the tests namely, multicollinearity, normality, linearity, and homoscedasticity.
Also, may i know do I include all independent and control variables together when executing the multiple regression under the linear regression option. I am stuck on these issues and would like to get your advice on that. Thank you
I guess he is a Sir :p
hi, how to analyse this variables: dependant child BMI, independant father and mother BMI, is it using multiple or simple linear regression. how to present the result into table
Thank you very much for posting this very helpful tute ^_^
Great vids, thanks
what if i have multiple DV and IV?
Wish you didn't do stepwise :(
good job done
I wish you knew how to upload High Quality videos.
Oh, so it's bad when the homework is to check them all yourself.
Life a a a finds a way
/watch?feature=player_embedded&v=IWYENu0kCYE
That's the in-depth video.