David E Jones

5 Questions 9 Answers 0 Followers

Questions related from David E Jones

Likert variables as continuous and determining linearity?

I am attempting to determine linearity for my predictor/control variables that are on a Likert scale 1-6. The response variable is continuous (GPA). I have used SAS to plot the residuals but not...

13 March 2025 1,862 5 View

How to overcoming a non-random sample?

I have a non-random sample of undergraduate students (n-230). The aim is to conduct a mediation-moderation approach. I would like to know my options for overcoming selection bias beyond including...

26 April 2023 1,074 4 View

How to handle existing groups and analysis for different instructors of a course?

I am working on a quasi-experimental research study. The study aims to see if there is a difference between student scores on clinical skills between a skills course that is taught in two...

11 August 2021 5,136 4 View

How to run a MANCOVA power analysis in SAS, SPSS, or R?

Hello, I am trying to determine how to run a power analysis for a MANCOVA. I typically use G*Power. I did not see MANCOVA option in that program. Any direction/guidance on running a power analysis...

16 May 2018 3,116 3 View

What is some practical and applied resource for distribution and link fx with GEE?

I am currently working on my dissertation with an outcome that is positively skewed, clustered, and ranged from 10 to 28 (ordinal) from a psychological instrument. I am using a GEE approach to...

21 August 2015 9,570 1 View