Intensive Course On Intermediate Statistics, Scientific Writing, Producing A Quality Thesis and Critical Appraisal 2018


Date: 5th - 7th February 2018 (Monday to Wednesday)
Venue: Lecture Hall 4 and 7, School Of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan.

Timetable:  Download

Course Materials:

  1. Overview & Concept of Multivariable Analysis:  Lecture materials
  2. Endnote & Referencing:  Lecture Materials, Additional Material
  3. Exploratory factor analysis & reliability:  Lecture materials
  4. Analysis of Variance:  Lecture materials
  5. Analysis of Covariance:  Lecture materials
  6. Cochrane Systematic Review:  Lecture materials
  7. Repeated Measures ANOVA:  Lecture materials
  8. Multiple Linear Regression:  Lecture materials
  9. Multiple Logistic Regression:  Lecture materials
  10. Survival Analysis:  Lecture materials
  11. Critical Appraisal:  Lecture Materials
  12. An Examiner’s Expectation Of A Thesis:  Lecture materials
  13. Criteria For An Adequate MMed Dissertation:  Lecture materials
  14. Criteria For An Adequate MSc/PhD Thesis:  Lecture materials [available during lecture]
  15. Writing a Manuscript:  Lecture Materials

5th Questionnaire Validation Workshop 2017


Part 1 - Questionnaire Development

Duration: 1 day.
Date: 9th of October (Monday).
Venue: Bilik Tutorial A (BT-A), Ground Level, PPSP, USM Kubang Kerian, Kelantan.
Maximum participants: 35.

Part 2 - Questionnaire Validation

Duration: 1 day.
Date: 10th of October (Tuesday).
Venue: Makmal Informatik Perubatan (MIP), Level 1, PPSP, USM Kubang Kerian, Kelantan.
Maximum participants: 35.

Organized by:

In collaboration with:

For more information, please download pdf brochure and timerable as given below:

Sample Size Calculator

Sample Size Calculator version 2.0

Update: October 2017

Download: Sample Size Calculator v2.0.xls

The Sample Size Calculator consists of six tabs for:

  1. Zα and Zβ.
  2. Means - Single mean (B3, B4), Two-mean comparison (independent and paired) (B1, B2) and standard deviation of difference (B5).
  3. Proportion - Single proportion (C2), two-proportions comparison (independent) (C1), and sensitivity and specificity (C3)
  4. Intraclass correlation coefficient (ICC) (D1).
  5. Kappa coefficient (E1).
  6. Cronbach's alpha coefficient (F1, F2).

The first three tabs (1, 2 and 3) are quite basic; I use these for teaching postgraduate students.

In addition, tab 4, 5 and 6 are sample size calculators for three common reliability coefficients. These are very useful for researchers to decide on sample sizes for interrater reliability and scale reliability. I could not find good sample size calculators for these coefficients, and it is quite overwhelming to calculate the sample sizes manually from the formulas provided in the original papers.

The decision to make it accessible in form of spreadsheet file is because the ease of development and cross-platform readability of .xls file. Although the spreadsheet was created in LibreOffice Calc, the .xls should be compatible with other spreadsheet applications.

Future: R shiny version for tab 4, 5 and 6 is planned.

Suggested reference:

APA: Arifin, W. N. (2017). Sample size calculator (Version 2.0) [Spreadsheet file]. Available from

Vancouver: Arifin WN. Sample size calculator (Version 2.0) [Spreadsheet file]. Author: 2017. Available from

Should you have any enquiries/suggestions regarding the Sample Size Calculator, please e-mail the author at This email address is being protected from spambots. You need JavaScript enabled to view it..