I am **Muhammad Imdad Ullah**. In 2017, I earned my Ph.D. degree in Statistics from Bahauddin Zakariya University Multan, Pakistan. The main concentration of my work in Ph.D. was detection and collinearity and its remedy using some biased regression techniques such as ridge regression and Liu regression. I proposed two collinearity diagnostic in my Ph.D. work and also developed three R packages that are available on CRAN. The packages are mctest, lmridge, and liureg. I also have three publications related to these packages in The R Journal.

I am also teaching applied Statistics and Mathematics as visiting lecturer in different departments of the University.

Following are the subject taught by me.

- Statistical Packages (SPSS and Minitab)
- Design of experiment (Practical)
- Business Statistics (I & II)
- Business Mathematics
- Business Mathematics and Statistics
- Probability and Probability distributions (Practical)
- Advanced Statistics (Sociology, Psychology)
- Quantitative Methods using SPSS
- Quantitative Techniques

**Publications:**

**Imdad, M. U.**, Aslam, M., and Altaf, S. (2018). lmridge: A comprehensive R Package for Ridge Regression.*The R Journal*, 10(2), 326-346.**Imdadullah, M.**, Aslam, M., and Altaf, S. (2017).*liureg*: A Comprehensive R Package for the Liu Estimation of Linear Regression Model with Collinear Regressors.*The R Journal*, 9(2), 232-247.**Imdadullah, M.**, Aslam, M., and Altaf, S. (2016).*mctest*: An R Package for Detection of collinearity among regressors.*The R Journal*, 8(2), 499-509.- Qureshi, S.U., Ashfaq, J., Hassan, M.U, Imdadullah, M. (2015). Impact of Extroversion and Narcissism on in Role and Extra Role Performance: Moderating Role of Impression Management Motives, Pakistan Journal of Commerce and Social Sciences, Vol. 9, pp. 96-119.
- Qureshi M.A., Ali Abdullah and Imdadullah M. (2012). Stock Prices’ Variability around Earnings Announcement Dates at Karachi Stock Exchange, Hindawi Publishing Corporation, Economics Research International, Vol. 2012.
- Qureshi M.A., Imdadullah M. and Tanveer A. (2012). What determines leverage in Pakistan? A panel data analysis. African Journal of Business Management. Vol. 6(3), pp. 978-985.
- Qureshi M.A., Waqas A. and Imdadullah M. (2012). Does Diversification Affect Capital Structure and Profitability in Pakistan? Asian Social Journal, Vol. 8, No. 4.
- Numan A., Ali M., Imran S.C. and Imdadullah M. (2011). A Study on Student Satisfaction in Pakistani Universities: The Case of Bahauddin Zakariya University, Pakistan. Asian Social Journal, Vol.7, No. 7, pp 209-219.
- Aman Ullah M., Imdadullah M. (2011). Impact Analysis for Regression Models with Heteroscedastic Errors. Pakistan Journal of Social Sciences. Vol. 31, No. 2, pp. 379-394.
- Atif A., Imdadullah M., Aman Ullah M. and Aslam M. (2011). Determinants of Economic Growth in Asian Countries: A Panel Data perspective. Pakistan Journal of Social Sciences. Vol. 31, No. 1, pp. 145-157.

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