Yogarabindranath Swarna Nantha

12 Questions 54 Answers 0 Followers

Questions related from Yogarabindranath Swarna Nantha

Can anyone explain how I might be able to assess learned helplessness in patients?

I intend to examine the possibility of learned helplessness in patients. I would like to know the process of evaluating this behaviour in patients and what scales I should use?

02 February 2017 8,103 4 View

If your study is an non matched case control design, do you need to match age, sex, gender etc. for prevalence rates calculation? If yes, why?

Greetings all. If you have two groups (one exposed and not exposed) using an unmatched case-control study design, do you need to match all other variables? Could this be avoided by just performing...

20 May 2016 8,614 6 View

Can I perform a validation of scale into a different language but avoid conducting construct validity temporarily?

I conducted the validation of a scale into another language and it seems to mirror the findings of the original and other international results. However, I was not able to conduct a construct...

22 January 2016 5,682 1 View

When performing factor analysis on dichotomous data, is it sufficient to use SPSS alone?

While attempting to validate a questionnaire, I have noticed that many authors (from different countries) use different softwares such as R Statistics or Mplus Statistical Package to perform...

22 June 2015 5,072 11 View

Using the Theory Planned Behaviour framework, how do we identify which items to remove from the indirect measures of a construct in a questionnaire?

We compared the composite scores of the indirect and direct measures (attitude/subjective norm/perceived control). They were all strongly correlated. But in some journal articles, authors seem to...

14 June 2015 856 7 View

What do you conclude when you have a paired t-test result that is significant but with a high standard deviation (about half the value of the mean)?

The skewness and kurtosis of the data was within limits that can be considered normal (-1 to 1). Do you still conclude that the results are significant but stating that a larger sample size would...

30 May 2015 3,165 4 View

What do you conclude when you have prevalence of latent TB infection (LTBI) amongst diabetics that's close to the prevalence of LTBI in the community?

If the methodology of the study is sound, can you just conclude by saying that being diabetic does not confer an extra risk of being predisposed to latent TB infection (in contrast to having...

23 May 2015 3,283 8 View

Is there a specific way of removing outliers from a data set that has a non-normal distribution?

I am working on validating a questionnaire and I need to ensure that there are few (or no) outliers that might affect the factor analysis process. Is the outlier labeling technique (Hoaglin,...

01 May 2015 1,253 11 View

The Questionnaire Conundrum - Is there a way to ensure that a questionnaire is answered satisfactorily well?

Recently, we embarked on a research project that involves the assessment of the intention of primary care physicians in providing sickness certification to patients. We rigorously conducted pilot...

09 February 2015 9,661 10 View

Can a practical clinical review of topics in primary care serve to aid an already existing clinical practice guidelines?

As a primary care physician, I found that there is a certain gap in practical knowledge that clinical practical guidelines (CPG) seem to offer my fellow colleagues. Hence I embarked on a mission...

11 January 2015 6,756 8 View

How does one calculate effect size a priori without the availability of prevalence data?

When there is no prevalence data available, how does one calculate effect size? I thought the best way would be to do it post-hoc. I do realize that it could unreliable. But if that is the only...

07 December 2014 2,224 7 View

Is there a way of specifically testing the intrinsic motivation of physicians in primary care/tertiary care using a psychological framework?

Intrinsic and extrinsic motivation are almost inseparable. At times they work dynamically. However, there are many examples of testing out the intrinsic motivation component in other fields, less...

21 October 2014 2,162 8 View