Experimental study sample size?

More Tharishni Anblagan's questions See All

Bonferroni correction. I have independent t-test, paired t-test and ancova conducted. Which test would require Bonferroni adjustment?

I have two groups that I test on three different tasks. I have 4 independent t-test, 6 paired t-test and 2 ANCOVA. My concern for which t-test should I conduct bonferroni correction. At the moment...

28 July 2024 7,827 6 View

Five likert scale or four likert scale for agreement?

There has been various read up on four verses five likert scale. What would be the best to follow to study the level of agreement of the informant? Thank you and God bless.

23 December 2023 1,295 0 View

Cohen Kappa or Cronbach Alpha for reliability?

I have been reading and watching youtube and reading papers on Cohen Kappa and Cronbach Alpha? I am aware Cohen Kappa looks at inter-rater reliability. Which is more suitable for module...

28 November 2023 3,709 0 View

Back translation enquiry?

I would like to enquire on the cross cultural study back to back transition, if the original questionnaire is in English language. I would like to translate into Malay. I did refer to Brislin but...

10 September 2023 1,775 0 View

Content validity experts?

I would like some clarification on the content experts when we validate an instrument? Would an expert qualify as a content validator if he or she is an expert in the field of study that the...

04 September 2023 6,430 0 View

How can we validate interview transcripts?

Would member checking and external auditor sufficient?

12 July 2023 6,638 4 View

What type of sampling to use when I have more than 1 category of disabilities in the classroom? My target mild autism student for quasi experimental?

I am recruiting students from a special education integration programme classroom. This classroom has more than one disabilities of students (in example: autism, intellectual disability, down...

24 March 2023 2,329 2 View

Back to back translation in a cross cultural study

I would like to enquire on the cross cultural study back to back transition, if the original questionnaire is in English language. I would like to translate into Malay. I did refer to Brislin...

01 January 1970 2,595 4 View

Enhancing Critical Thinking Skills for Slow Learners: A Review of Empirical Studies?

to identify themes in question with APA style references

07 August 2024 2,239 5 View

Are there any instruments for studying time similar to the way it is in space?

There are a huge number of methods for studying objects in space, according to the senses (and not only). Mechanical, thermal, optical, acoustic, electrical, magnetic, based on particle beams,...

06 August 2024 7,101 0 View

RNA later for the preservation of RNA in fecal samples at room temperature for one day (37°C)?

I am planning to collect human fecal samples for metatranscriptomic analysis using MGI. These samples are from indigenous people living in a region with high temperatures. I will have access to a...

06 August 2024 1,364 3 View

Are there any good simple systems or platforms to recommend?

In order to show people the beauty of control and enhance enthusiasm for learning control theories, are there any good simple systems or platforms to recommend?

05 August 2024 10,033 1 View

If we are using snowball sampling technique, how do we justify the true representativeness of the sample statistically? is there any statistical test?

Are there any statistical methods to justify your sampling technique using SPSS or AMOS?

05 August 2024 9,152 4 View

How to report results of Generalised Linear Mixed Models in a journal article?

Hi everyone, If you have written or come across any papers where Generalised Linear Mixed Models are used to examine intervention (e.g., in mental health) efficacy, could you please share the...

04 August 2024 4,129 4 View

Which distribution type should I use when calculating the average particle size from TEM image? and how to calculate the error ?

average particle size calculation from TEM

04 August 2024 2,920 1 View

Senescence-associated beta galactosidase staining is False Positive in control group?

Hi guys If anyone is currently working on aging cells, you guys would like to give me some advice. I'm testing against biomarker (SA-beta-Gal), I encountered a false positive in the control group...

02 August 2024 6,733 1 View

How to calculate effect size of AMCE (Average Marginal Component Effect) in Randomized Conjoint Experiment?

I am following Hainmueller, Hopkins, and Yamamoto's (2014) paper for my randomized conjoint experimental data analysis. The link to the paper is provided below. I received a comment from the...

02 August 2024 4,405 0 View

Are current regulations effective in preventing cancer caused by toxins?

I am currently researching the impact of environmental toxins on children's health and would greatly appreciate insights from experts in the field. If you are an expert or researcher working on...

02 August 2024 4,473 2 View

Blaine Tomkins

The experimental and control groups should be roughly equal in size, but it's not essential that they are exactly equal.

The more important question is whether the residuals are roughly normally distributed in each group - as most traditional NHST tests make this assumption.

Tharishni Anblagan

Thank you Dr Blaine. I appreciate your response:)

Deborah J Hilton

I think I agree with the above answer

Thank you Dr Deborah:)