What is the justification for using survey methodology to measure effects?

Survey for measuring effects

05 June 2018 6,106 0 View

What are the factors which can affect Psychological Well-being of the teenagers?

09 October 2016 2,921 0 View

How excessive usage of social media affects mental health of the users?

06 July 2015 668 4 View

Can we develop a health literacy measurement tool for countries like Pakistan?

How could we develop such a tool? Please give suggestions and elaborate on how to get a health literacy measurement tool approved.

03 April 2014 7,225 5 View

Are researchers producing new knowledge in our specified fields?

Most of us are PhDs or with other higher research degrees. How many of us can say that as a result of research done, we have produced some new theory, new model, or any kind of new knowledge? If...

02 March 2014 6,146 18 View

Social networks like Facebook are used for self-projection, most of the time by most of the members. Do you agree?

It has been observed that on social networks especially Facebook, the posts are related to one's self-projection, which is not a positive use of these kind of sites.

02 March 2014 4,077 9 View

What are the prospects of Research Social Networks?

How do you see the future of this social networking?

01 February 2014 6,346 4 View

What is the importance of a native language for a nation?

How is it important, and what if the native language is not given the utmost importance at national or at least regional levels?

01 February 2014 9,100 20 View

Can anybody please share a kind of rulebook for SPSS?

Sometimes it is tough to memorize the tests while working on data. A simple and small rulebook (mentioning what tests on what kind of data) can be helpful.

01 February 2014 828 9 View

Physically smart people are mentally smart also. Do you agree?

Does the physique of a human being actually affects the intellect? Give your opinions please

01 February 2014 565 16 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

No title

01 March 2021 3,905 5 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

Sample size determination for non-parametric tests?

How do I run a a priori sample size determination for non-parametric tests, like the Mann-Whitney U-test and the Kruskall-Wallis or other non-parametric tests that accord with the unpaired t-test...

24 February 2021 166 6 View

How to determine a priori sample size for t-test with unequal means?

I need to conduct a a priori sample size determinations for t-test with unequal means, but I don't know the sizes of the groups nor the ratio of both groups... Can I do a sample size determination...

24 February 2021 8,289 3 View

What are alternatives to factor analysis for a small sample?

My sample size is too small to conduct a factor analysis. I created my own psychometric scale for measuring Effectiveness of Support, which contains 38 items (4 sub-scales) Im really struggling...

23 February 2021 9,287 12 View