Underestimation of medications adherence?

We all know that patients may overestimate medication adherence especially by subjective method. However some patient may underestimate. Could we discuss the reason behind this medication taking...

04 May 2018 6,611 0 View

Could anyone explain correct factorial structure?

Sample Size. Costello and Osborne15 empirically tested the effect of sample size on the results of factor analysis and reported that 70% of the samples with a ratio (sample size: number of items)...

11 December 2017 7,539 0 View

What is the solution for this error?

I have got the following error message while I tuned the instrument LC-MS ( Error-1 no peaks returned by the peak finder).

09 October 2017 1,324 0 View

What can i use to analysis data?

I am studying adherence to medications and my patients are coded as 1 male,2 female and adherence to medications was coded as 1 adherent,2 non-adherent. The number of medications for each patient...

09 October 2017 3,819 1 View

What statistical tool should I use?

I want to find the relation between adherence to medication which are categorical variable Adherence AND non-adherence and number of medication which is discrete variables. Could i use logestic...

08 September 2017 8,885 3 View

How could I get ethical approval for Morisky green questionnaire?

I understand that before application of Morisky green questionnaire I should get a permission but how can I get an ethical approval for this questionnaire in another country with different...

31 December 2015 6,272 3 View

How can I collect info. about the popular medications in my country?

31 December 2015 3,164 13 View

How to calculate sample size in phD thesis?

research would be by direct (biological sample)and indirect (questionnaire)

11 December 2015 2,470 3 View

What are some alternatives to the Self-Directed Learning Readiness Scale (SDLRS) developed by Dr. Lucy L. Guglielmino?

The Self-Directed Learning Readiness Scale (SDLRS), also known as the Learning Preference Assessment (LPA), was developed by Dr. Lucy M. Guglielmino in 1977 to measure learners' attitudes of and...

15 February 2021 3,095 4 View

How to calculate response rate if the number of eligible respondents is not available?

Hi All, I am carrying out an international research with clinicians (speech-language pathologists/ therapists). International professional associations will be distributing the questionnaire link...

02 February 2021 5,306 3 View

How is it possible to rank variables using Likert scale?

Hello Everyone, I have a questionnaire of a 3-point Likert scale for an overall evaluation for a service, and several detailed attributes evaluation of that service. For example: Overall...

31 January 2021 9,612 8 View

How do you multiple impute item scores and perform a linear regression on factor scores?

I am developing a questionnaire and first performing an exploratory factor analysis. After I have the final factor structure, I plan on regressing the factor scores on some demographic covariates....

18 January 2021 883 8 View

How do I access Domestic Violence Attitude Scales or find them for free?

Hi, I'm a postgraduate student currently starting up a research project on attitudes towards domestic violence (DV). The study will aim to compare cultural differences between attitudes and...

31 December 2020 781 3 View

What is the best Quality of Life questionnaire for chronic patients?

Hello! I am looking for a SHORT questionnaire/scale to measure Quality of Life in chronic patients (e.g. fibromyalgia, or multiple sclerosis). Ideally, validated for English and Spanish speakers....

22 December 2020 9,962 4 View

Is it always mandatory to report and test the validity and reliability of a newly developed questionnaire?

Hello everyone! Currently, I am doing an observational, cross-sectional study on knowledge, atittude, and practice towards thalassemia in Indonesia. My area of interest is in population studies....

16 December 2020 3,725 16 View

May I use Minimal important difference (MID) in non-normal distribution?

MID is based on Standard deviation, consequently, I should not use it in non-normal distribution. Am I right? If yes, which test may replace MID?

13 December 2020 7,573 3 View

How to do Factor analysis for extracting items - side by side column questions ?

Hi everyone, I have side by side questions in the questionnaire. There are total 29 questions. Each question has more than 11 items and three side by side columns to capture different contexts...

02 December 2020 5,499 3 View

How can chemistry help fighting COVID-19?

Chemistry is frequently termed the "central science". As such, chemistry is expected to play a major role in fighting the coronavirus. For example, hand sanitizers and drugs are all based on...

30 November 2020 4,983 17 View