Part 1: Guide for simple statistical analysis by using SPSS

Salam and Hi!

In this post, I would like to share with you on my little knowledge about statistical analysis. I have been doing this sooo many years during my postgraduate studies. So these are some of my notes on simple statistical  analysis using SPSS. This can be useful if you want to report your experimental results, can be from your tissue culture, animal or human studies in a thesis or research articles.   I think  nowadays, few universities require at least you have published 1 research article or 2 papers before your MSc or PhD viva respectively.

 

Why you need statistical analysis for your data?
- Is a kind of love & hate relationship
- To know if any differences in your data is significant of not
- To verify/prove your research hypotheses
- To report your result in manuscript/thesis
 

How to analyse your result?
- The easiest way by using SPSS software.  This analysis software is acceptable for data   publication in a research article
- Relook at your research objectives in your proposal. You need to analyse your data according to your research objectives. 
- Example type of analysis- can be controls vs. treatment groups, between different cell types of treatment groups, different treatment time points etc. 



Before data analysis, you need to do these: 
1) Key in your data in SPSS (need to define types of your data whether it is numerical or categorical)
2) Clean your data (make sure no missing data or error while key in your data)
3) Check distribution of your data (is it normally distributed of skewed?) by Kolmogorov Smirnov Test or by histogram graph.

Note 1: You need to check distribution of your data to decide the types of test that you need to perform; Parametric test (for normally distributed data) and  Non parametric test (for skewed data)

  
Note 2: However for cell culture work, normally the data is analysed using parametric test (reason: result in cell culture work usually consistent , not much variation within the data). 

Note 3: For in vivo work (human or animal studies), need to check the distribution of the data to choose the suitable statistic test. 

Ok. Till then,

Best regards,

the writer