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Thank you so much for this video - the information is just what I need to analyse and report on my experimental survey. It was easy to follow with you showing the different boxes up on the screen at the same time. Thanks

Good morning doctor David Please, can you make a video on: How to read, interpret and write the results of non-linear regression in SPSS?? Thank you Best regards Doctor Sameer

Hi there! Your videos have been so helpful! I have a quick question I am currently analysing data for SD-WISE 7 item scale - I placed my pre and post-intervention scores into Shapiro-Wilk and It comes as normally disturbed (p = .032). Following this I would use a paired sample t-test? Just so confused haha any help would be appreciated :)

You're such a wonderful facilitator. Do a tutorial on correlation, regression, and path analysis.

Good job. Please redo all your statistics tutorials in Jamovi.

Amazing

thank you!

thank u i love u

Hello Robin, If some assumptions are violated, what will do?

Thank you ❤

Best Video Ive used, thank you!

Do you have an example of how to report paired sample t-test in APA format in a table? Thanks

Thank you for this. I have ran the test but I am confused how to interpret the results. I am comparing anxiety scores for parents of autistic and neurotypical children. The three groups in the study are : Mums of autistic children, mums of neurotypical children, and dads of neurotypical children (no dads of autistic children were able to be recruited). I have found a statistically significant difference between mums of autistic children and mums of neurotypical children. But what does not make sense to me, is that if there is no difference between Mums of neurotypical children and Dads of neuorotypical children, then surely there should be a significant difference between Dads of neuortypical children and Mums of autistic children, yet this was found to not be significant. Can my sample size influence this? I had much much fewer Dads take part than mums?

thanks!!!!!!!!

Hi david! (I am the guy from Argentina who greeted you earlier in the video of the logistic regresion). My question is about the following: I have carried out the analysis U of mann whitney, the p value is .002, but when it comes to checking the medians, both groups have the same result, as I interpret that?

Independent variables: - Treatment group (binary) Dependent variables: - the primary outcome, systolic blood pressure (SBP) (continuous) Covariates: - age- Nominal categorical - sex - categorical - smoker status - categorical - baseline systolic blood pressure- continuous (numerical) In this scenario if I wanna see the association between treatment group and the primary outcome, systolic blood pressure (SBP), keeping other covariates what should I put in the place of model and factor box?

When do we have to check the logit linearity assumption?

Sorry in advance sir, so when the result of the sig is <0.001 is significant or not?

Thank you for your informative video. Could you please suggest the correct method for performing ROC curve analysis when combining multiple parameters using SPSS?

Many thanks for a clear and informative presentation

Hi, do you have examples in open source software like Jamovi?

Thank you very much for your good predisposition! Thanks to your recent explanations I was able to finish the results section of my research! Greetings from Cordoba Capital, Argentina.

Hello Robinson Can you make a video of two-way ANOVA with repeated measures (2 Group Pre and post test design) Thanks in advance

In the example results section, "treatment group" = "treatment 1 group" and "placebo group" = "treatment 2 group".

Hi Dr Robinson - this was fantastic. Thank you for your level of detail. Wondering if you have/will do one of these for moderated logistic regression? I'm writing a thesis and have found limited number of videos on this topic?

Thank you for this! :)

Thanks

Really helpful! Thank you very much!~👍

Thank you for another brilliant video. My correlation coefficient is 0.042 (looking at caregiver anxiety and their child's age. the p value is 0.584. How write this up as the p value is not siginificant? n = 176.

I greatly benefited from the APA writing style. There are not many resources for getting an example of how to describe the results in APA format. Thanks a lot!

One more question. Dont we need to do Dunn's post hoc test?

Sir, I have 3 groups. My data is collected on 5 point Likert scale. Each of my construct is formative (not reflective) in nature, therefore there are different items which form a construct. I want to know significant differences between the three groups on each of the formative items of a construct. Shall i do KW test individually for all the items?

Hi David, happy to have found your beginner friendly videos that are easy to understand. Im struggling to know if i run cronbachs alpha on the subscales that were created after i computed all the variables for my questionnaires. I know that if a questionnare measures more than one construct that you individually run cronbachs alpha on them but is this the same for subscales within a questionnaire. Thankyou

SAVIOR TATT Thank you Dr. Robinson.

Awesome video, thanks a bunch!

Does anyone know what to report or what is still relevant when your mdoel is not significant? right now i did it like this: The logistic regression model contained partner strength as dependent variable and SDO as independent variable. The model was not statistically significant X2(1, N = 102) = 0.46, p = .498, indicating that the model was not able to distinguish between the choice for either the stronger or weaker player. The model only explained between 0.5% (Cox and Snell R square) and 1.1% (Nagelkerke R squared) of the variability in the choice of the stronger or weaker player. Results revealed that SDO was not a significant predictor of partner strength W(1) = .456, p = .500. Consequently H3 was not supported. ANd is the Walt mandatory or could i delete that?

This was very helpful, you are an excellent instructor. Thank you!

Dr, if my pretest results are significant between the control and experimental group... should I run a ancova to control the pretest score and see how the post-test score would be? an independent t-test showed significant difference in the pre test...

Wow! This is almost art! Just perfect!! and also, statisticians be cute! 🤷‍♀

imagine you'd want to add a third column by treatment type. let's say total population. as in total + yes + no diagnosis. how could you do that?

Brilliant thanks

This is perfect, thanks you've simplified everything. Do you have a similar video showing parametric t tests and the write up?

Thank you, this was really helpful

Thank you. should it be written as p=0.005, or simply p<0.05 when reporting in APA style?

Very helpful thanks David, you explained that very clearly

Very informative! Thank you

you missed the linearity assumption of multiple linear regression model.

Hi good day I would like to ask about the interpretation of logistic regression in SPSS, because I did background LR logistic regression and the analysis result provide me some choices on Step 1a, 2a, 3a,4a. Hence, I’m wondering that can I take each step of the value that I want ? Or I only can take the value is in Step 1a while I cannot take the value in step 2a

Do I need to indicate where in (Appendix) the marker can find the results of the SMLR results?

Hi, May I double confirm with you about the hosmer and lemeshow test, however the significant is 0.506 (non-significant), it still indicates a good model fit in data right ?