Kellie Vella

5 Questions 5 Answers 0 Followers

Questions related from Kellie Vella

Should I split a sample for inferential testing?

Hypothetical: I conduct a survey and ask the respondents to answer a yes/no question "do you consider yourself to be an alcoholic". Their responses correlates with high/low averages on another...

22 August 2024 8,141 5 View

Can anyone suggest a short, validated measure of task difficulty or challenge?

Ideally it is under 10 items long and uses a 7-point scale and is free to use. I've been looking and while there are scales like that I can't seem to find any that are both validated and free to...

21 May 2019 5,847 0 View

Can you reliably impute entirely missing surveys from a longitudinal study?

My colleagues and I have delivered a 4-wave survey (day 1, day 30, day 60, day 90), which makes use of multiple psychometric measures. We have the complete data for each survey collected, but also...

05 June 2018 9,006 5 View

Has anyone handled a study taking fNIRS, ECG and EMG measures, and if so, how did you handle the baseline?

Hi all, I'm putting together a protocol involving fNIRS, ECG and EMG, and am aware that they all have different requirements regarding the return to resting state. Does anyone out there have any...

29 June 2016 4,359 1 View

How-to on running factorial manova?

Does anyone have any resources on how to run a factorial manova (including assumptions), or am I to assume that I can combine the processes of factorial anova with those of anova? I might add that...

22 April 2016 8,634 3 View