Is there a validated Swedish, Norweigan or Danish version of the International Index of Erectile Dysfunction (IEEF5)?

The IEEF-5 is transalted and validated for several languages, but I have not found a validated version from Scandinavia. Grateful for information regarding this questionnaire and its usability,...

06 July 2018 3,643 0 View

What is the optimal procedure for testing pragmatic validity of instruments after translation?

To ensure that translated instruments have a pragmatic validity and thus will be both used and and that the results will be of interest to clinical practice, my question regards the optimal...

02 March 2018 9,344 7 View

Are there questionnaires measuring self-efficacy and trust for patients and professionls?

I am looking for reliable and valid questionnaires to measure self-efficacy among health care professionals and also among patients (preferably with chronic diseases, but also for questionnaires...

11 December 2017 9,042 0 View

Is there any scientific methodology written on "trichotomization"?

In quality reports regarding school results etc it is common to use a 10 point numeric scale and then trichotomizing the results into three categories from the original ten categories, when...

10 November 2015 1,803 5 View

What would you cobnsider to be the lowest accptable reasponse rate concerning online-questionnaires?

04 May 2015 6,445 3 View

What are your experiences of scoping studies compared to more systematic reviews?

In what cases would the different research models be most appropriate and why? What are the benefits and the disadvantages of using them?

09 October 2014 6,670 0 View

What is the correct sample size when performing av explorative factor analysis for construct validity in a psychometric study?

In the literature that I have found so far, the answers to this question is varied and I am interested in a getting a clearer picture and recommendations.

08 September 2014 5,463 19 View

Can an exploratory factor analys from an original psychometric testing of an instrument be used in a confirmatory factor analysis in a new language?

Can an exploratory factor analys from an original psychometric testing of an instrument be used in a confirmatory factor analysis in a new language, i.e. when translating, adapting and testing the...

08 September 2014 4,015 4 View

Which is preferable for a scale in a questionnare, 3 or 5 options for answers?

In adapting a questionnaire with the options "agree", "uncertain", "disagree", my questions is if it would be preferable to include the options of "Partially agree" and "partially disagree". What...

08 September 2014 1,867 13 View

Why do you use Researchgate and what is your perceived value of using Researchgate?

01 January 1970 8,501 4 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Ideas for Phd's Thesis on pricing (Marketing)?

Hi everyone, I'm studying Marketing and I would like to write my PhD thesis on the topic of pricing. Any specific ideas?

02 March 2021 9,706 5 View

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02 March 2021 3,060 3 View

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02 March 2021 932 1 View

Good sites to recruit survey participants on a grad school student budget?

Any good recommendations for participant recruitment for online surveys on a grad school student budget?

02 March 2021 4,293 4 View

How to quantitative analize the data of TNBS assay for gelatin?

Estemeed colleagues, I found some issues regarding the quantification of the data for TNBS assay. There are different protocols on how to perform that but it is clear to me the "fil rouge" that...

02 March 2021 2,616 1 View