Darko Giacomini

9 Questions 8 Answers 0 Followers

Questions related from Darko Giacomini

What psychometrics can be done with small samples?

Hi all, I had a fairly general question regarding analyse and sample sizes. Essentially I am wondering what kind of psychometric analyses are possible with smaller samples (around 100) on a 28...

05 May 2019 4,108 6 View

What is the standard practice of re-coding alternating response scales within a survey?

Hi all, Just had a quick question about alternating survey response options and wanted to get some insight into the practice of re-coding said response options. I'm currently working with survey...

05 May 2019 4,357 4 View

What is the best way to develop a cut score for likert-scale based questionnaires and MCQs?

Hi all, I'm currently working through a couple of questionnaires (one is a likert-scale based questionnaire - Strongly Agree to Strongly Disagree), and the other is multiple choice (in which...

08 August 2018 6,996 3 View

What is the rationale behind reverse coded questions?

Hi All! Having analyzed /administered numerous psycho-educational questionnaires, I've noticed that the scales on certain questions was reversed in my recent travels. For example, a scale for the...

07 July 2018 7,854 2 View

What is the difference between forcing convergence (RCONVERGE) and changing the number of iterations (ITERATE) in SPSS?

Hello experts! I'm currently conducting some in-depth research into some of the more granular models within SPSS, and am wondering, when faced with the error "Rotation failed to converge in 25...

07 July 2018 4,001 2 View

What is the most effective method of assessing a vocational training MCQ?

Hello research experts, I'm currently working on a project that involves assessing the validity/reliability of a four-option MCQ designed to assess trainee performance as well as a training tool....

10 October 2017 6,041 1 View

Observer Effect

Hello experts, I've been trying to do some research on educational measurement and more generally how the act of measuring a variable changes its properties. I'm just wondering if anyone could...

08 August 2017 9,698 3 View

In which order should survey response items appear?

Hello research experts! I'm currently performing research into different types of survey designs, response coding and analyses. I came across a citation I was hoping someone might be able to...

03 March 2017 2,448 8 View

Is an ANOVA appropriate?

Hello experts! I was just struggling with what kind analysis I might carry out for a certain dataset. I have a sample of 200 cases (IDs) divided into three different groups; I would like to...

11 November 2016 3,083 7 View