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Questions related to Statistical Analysis
I am planning a developmental experiment where I will treat neonatal mice and then I will perform test after they reach adulthood. I plan to use within-litter design as follows: I will use 12...
08 October 2020 8,674 13 View
I’ve already read a few dozens of articles on how does the statistical software (such as R) is different from the SPSS? Both are meant to work with data, yet some say R is more suitable for...
05 October 2020 4,728 20 View
Dear all, I am performing my data analysis and I got the following message from r software "boundary (singular) fit: see ?isSingular Warning message: Some predictor variables are on very different...
25 September 2020 2,178 2 View
I am measuring the drug release of a few drug-eluting implants in dissolution medium in different time intervals. All the measurements are in triplicates. Would ANOVA or TTEST is an appropriate...
21 September 2020 8,308 5 View
I am looking for some analytical, probabilistic, statistical or any other way to compare the results of a different number of approaches implemented on the same test model. These approaches can be...
17 September 2020 5,984 7 View
I ran a experiment in design expert and obtained three identical runs which seems weird. Checked few papers and they have three identical runs too and are published. Whats the reason behind this?
15 September 2020 6,248 8 View
Please suggest a good video link.
13 September 2020 3,131 6 View
I fitted a Cox proportional hazard model and checked the proportionality assumption using R's cox.zph function, with the following output: chisq df...
11 September 2020 3,421 0 View
Dear researchers, How to know which and how many statistical test to apply for the collected data while doing research as we have lots of parametric and non parametric test available especially...
10 September 2020 810 3 View
For my thesis, I am comparing the performance of a screening program between 2019 and 2020 (in the months March-July). I want to analyze the number of people screened per month in 2019 and 2020....
08 September 2020 3,762 12 View
Hi, In our study we are going to evaluate the effect of 3 different treatments on burn wound using rat models. what should the P-value cutoff be For statistical analysis of our q-pcr output and...
06 September 2020 3,095 3 View
So is it possible to get more than one final optimal solution using TOPSIS decision-making method in multi-objective optimization problem? If there is the possibility of getting more then one...
02 September 2020 7,793 9 View
I am currently doing a qualitative study with one independent variable (Learning Management Systems) and one dependent variable (students' perceptions) through a seven-point Likert scale...
30 August 2020 935 5 View
Let me begin by stating that statistics are unfortunately no strength of mine. I have conducted a questionnaire assessing loss of smell/taste in healthcare workers during the COVID-19 pandemic...
27 August 2020 5,407 4 View
Hi all, I have been trying to establish this technique in lab, but so far, I can't get a clear result. The protocol I am following is this:...
21 August 2020 7,397 2 View
I am a Master's student and currently doing my dissertation. I am struggling to choose a statistical analysis to prove my hypothesis as most of the statistical tests involve an independent and...
20 August 2020 780 3 View
Hi dear all, Actually, I have adapted high valid instruments from previous studies that have been published in developed country and currently I want to use it for first time in other region,...
19 August 2020 4,227 11 View
I have performed an experiment with 2 time points And 3 temperature levels The control for this experiment is an untreated sample. How can I correctly analyse this data set using spss while...
14 August 2020 793 6 View
I'm studying the effect of an ordinal variable (eating healthy food [Rarely, Sometimes, Mostly, Always] as an example) on a binary outcome (Smoking [Yes, No] for example) My question is, which...
02 August 2020 9,033 5 View
I have collected data using questionnaires from athletes at two time points. I have an independent variable (leadership) and a few dependent variables but also some mediating or indirect variables...
27 July 2020 4,374 1 View
How many experts are needed in analytical hierarchy process (AHP)?
25 July 2020 6,940 7 View
I have a dataset comprising clinical characteristics and glycomics profiles of disease samples (n=100+) and matched healthy controls. So far, I have been able to do classification modeling to...
21 July 2020 2,282 3 View
I have done a short survey and until now, I was able to collect only 100 responses. Not sure if collecting more would be possible. So was wondering, what kind of statistical analysis would support...
21 July 2020 9,721 12 View
To explain more, my study is on examining the effect of real earnings mangament on financial perfomance For a panel data.. so I want to run fixed effect, random effect and then hausman test to...
19 July 2020 8,389 5 View