ANOVA or ANCOVA?

I made an interventional study, with 2 groups control and intervention group, with measurement at baseline, after 3 months and 6 months, what is the best statistical test to evaluate if the...

02 March 2020 7,334 4 View

2 way ANOVA is it useful? is there any alternative?

Can I know how to perform comparison between 2 groups (intervention vs control) for a parameter which obtained at 0, 3 and 6 months (3 readings) and the data is abnormally distributed?

02 March 2020 5,859 3 View

Sample size calculation in randomized clinical trials??

09 October 2019 5,342 4 View

Retention rate in clinical trials?

Can a researcher get higher than the desired sample size in one arm of the study? Example if the sample size is 60 patients (30 in each arm) and one assumes 30% loss to follow up with a total of...

09 October 2019 8,177 6 View

What is the required sample size for randomized clinical trial among diabetic patients?

If previous studies showed a reduction of 0.71% in Hba1c (SD = 0.55) in inetrvention group and 0.25% (SD=0.47) in control group what will be the required sample size for this study to achieve 0.05...

06 July 2018 786 15 View

Is it reasonable to do a research on a new drug when its expected side effect is serious?

I just read news on medscape and found the following status: The research team is hoping to start trials of a plasminogen activator inhibitor 1 (PAI-1), TM5614, to examine its effects on insulin...

10 November 2017 8,468 5 View

What is the best reliability test?

Is there a reliability test other than cronbach alpha if answers to questionnaire questions with yes or no ?

09 October 2017 1,649 5 View

How to validate a questionnaire?

If someone structured a new questionnaire in arabic and did a pilot study on arabic people, but to publish the article an english version of the questionnaire is needed, then is there a need to do...

08 September 2017 8,518 7 View

How to calculate sample size?

07 August 2017 2,067 6 View

What will be the expected sample size for rare disease with 4/100000 prevalence ?

Is there any formula or calculator for measuring sample size in rare disease? especially if the researcher work in a medical center for this rare disease with nearly half of country cases

03 April 2017 4,123 18 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

How to write a scientific report?

We are analysing scientific reports at University in great detail, so I wanted to find a scientific report about how to write a scientific report. Including detail such as what information to put...

02 March 2021 7,602 4 View

How does Scientist/RG community evaluates a case study article and the impact of it on a researcher career?

An article that is published as a case study in the SJR listed journal. How much value is added to a researcher career? How it is evaluated by a scientific researcher/University admission...

02 March 2021 9,661 3 View

Tooth extraction and subsequent dental implant placement in Sprague-Dawley rats induce differential changes in anterior digastric myofibre size and ?

01 March 2021 7,254 3 View

What are the most relevant MSc proposal topics for Petroleum Production Engineering at the moment?

I am a Petroleum Production Engg MSc student at Robert Gordon University in Aberdeen and I am in the process of selecting a topic for my MSc Engineering Investigation proposal. I would very much...

01 March 2021 7,396 4 View

What is the actual chemistry going on between iodate and ascorbic acid?

I am studying biochemistry at university, as part of the course we do several titration experiments. In our handouts, we were given the following half equations: IO3- + 6H+ + 4e- I+ +...

16 February 2021 8,731 1 View

How to accurately measure cytokines levels for my university research proposal?

Hello, i am writing a theoretical research proposal for one of my university assignments regarding Covid-19. The brief is pretty relaxed and i have chosen to conduct a study on how the...

11 February 2021 908 5 View

Is this grounds for theophylline toxicity even though her plasma is within the therapeutic range? if it is, how is that possible?

A patient was given 300 mg Theophylline taken twice a day for the treatment of her bronchial asthma and has a positive clinical response. She has been compliant in taking her medication however,...

09 February 2021 3,489 3 View

How many authors?

Hello, I'm currently finalizing my Ph.D. proposal in Research in English Literature. I still have to apply to universities abroad. My question is can I pick two authors for my research (for...

08 February 2021 6,858 12 View

Any good opportunity in foreign universities for Post Doctoral - Spirituality, Teachings of Adi Shankaracharya and Management ?

For pursuing Post Doctoral, from a good university, in Spirituality, Teachings of Adi Shankaracharya and Management, please share relevant information. Thank you.

08 February 2021 5,186 3 View