Increasing power of M-test through pre-testing

PhD Thesis


Yunus, Rossita M.. 2010. Increasing power of M-test through pre-testing. PhD Thesis Doctor of Philosophy. University of Southern Queensland.
Title

Increasing power of M-test through pre-testing

TypePhD Thesis
Authors
AuthorYunus, Rossita M.
SupervisorKhan, Shahjahan
Institution of OriginUniversity of Southern Queensland
Qualification NameDoctor of Philosophy
Number of Pages250
Year2010
Abstract

The idea of improving the properties of estimators by pre-testing the uncertain non-sample prior information (NSPI) is adopted in the testing regime to achieve
better power of the ultimate test. In this thesis, the studies on increasing power of the ultimate test through pre-testing the uncertain NSPI are carried out
for four types of regression models, namely the simple regression model, the multivariate simple regression model, the parallelism model and the multiple linear regression model.

In this thesis, procedures are developed for

• testing the intercept of a simple regression model, when the NSPI on the slope can either be (i) unknown, (ii) certain or (iii) uncertain, or equivalently, when the slope is (i) completely unspecified, (ii) specified to
a fixed value, or (iii) suspected to be a fixed value.

• testing the intercept vector of a multivariate simple regression model when the NSPI on the slope vector can either be (i) unknown, (ii) certain or (iii) uncertain, or equivalently, when the slope vector is (i) completely
unspecified, (ii) specified to a fixed value, or (iii) suspected to be a fixed value.

• testing the intercepts of p (> 1) simple regression models when the NSPI on the slopes can either be (i) unknown, (ii) certain or (iii) uncertain, or
equivalently, when the slopes are (i) completely unspecified, (ii) equal at a fixed value or (iii) suspected to be equal at a fixed value.

• testing a set of parameters of the multiple linear regression when the NSPI on the other set of parameters can either be (i) unknown, (ii) certain or (iii) uncertain, or equivalently, when the other set of parameters is (i)
completely unspecified, (ii) zero or (iii) suspected to be zero.

Under the three different scenarios, the (i) unrestricted (UT), (ii) restricted (RT) and (iii) pre-test test (PTT) test functions are used to formulate the M-tests. The M-tests are derived using the score function in the M-estimation methodology. The sensitivity of the M-test to aberrant observations depends on the choice of the score function.

For each regression model, the following steps are carried out: (i) the test statistics for the UT, RT and PTT are proposed, (ii) the asymptotic distributions of the test statistics under the local alternative are derived, (iii) the asymptotic power functions of the tests are derived, (iv) the performance (size and power) of the UT, RT and PTT are compared analytically, (v) the performance of the UT, RT and PTT are compared, computationally using illustrative
data of a two-sample case or data simulated using the Monte Carlo method.

Under a sequence of local alternative hypothesis when the sample size is large, the sampling distributions for the UT, RT and PT of the simple regression model follow a normal distribution. However, that of the PTT is a bivariate
normal distribution. For the multivariate simple regression model, parallelism model and multiple linear regression model, the sampling distributions of the UT, RT and PT follow a univariate noncentral chi-square distribution under
the alternative hypothesis when the sample size is large. However, that of the PTT is a bivariate noncentral chi-square distribution. For all regression models,
there is a correlation between the UT and PT but there is no such correlation between the RT and PT. To evaluate the power function of the PTT, a package in R is used to compute the probability integral of the bivariate normal while a new R code is written to compute the probability integral of the bivariate noncentral chi-square distribution.

The robustness properties of the M-test are studied computationally on the simulated data for the simple regression model and the multivariate simple
regression model. The power of the M-test using the Huber score function is better than in the least-square (LS) based test because the former is not significantly affected by slight departures from the model assumptions while
the latter depends heavily on the normality assumptions. For all regression models, the PTT demonstrates a reasonable domination over the other two
tests asymptotically when the suspected NSPI value is not too far away from that under the null hypothesis.

KeywordsM-estimation; pre-test; regression model
ANZSRC Field of Research 2020490509. Statistical theory
Byline AffiliationsDepartment of Mathematics and Computing
Permalink -

https://research.usq.edu.au/item/q0xq8/increasing-power-of-m-test-through-pre-testing

Download files


Published Version
Yunus_2010_whole.pdf
File access level: Anyone

  • 1940
    total views
  • 448
    total downloads
  • 3
    views this month
  • 1
    downloads this month

Export as

Related outputs

Gastroesophageal reflux disease following laparoscopic vertical sleeve gastrectomy and laparoscopic roux-en-Y gastric bypass: meta-analysis and systematic review of 5-year data
Memon, Muhammed A, Osland, Emma, Yunus, Rossita M, Alam, Khorshed, Hoque, Zahirul and Khan, Shahjahan. 2024. "Gastroesophageal reflux disease following laparoscopic vertical sleeve gastrectomy and laparoscopic roux-en-Y gastric bypass: meta-analysis and systematic review of 5-year data." Diseases of the Esophagus. 37 (3), pp. 593-617. https://doi.org/10.1093/dote/doad063
Five-year Comorbidity Outcomes in Laparoscopic Vertical Sleeve Gastrectomy (LVSG) and Laparoscopic Roux-en-Y Gastric Bypass (LRYGB): A Systematic Review and Meta-analysis of Randomized Controlled Trials
Osland, Emma J., Yunus, Rossita M., Khan, Shahjahan and Memon, Muhammed Ashraf. 2023. "Five-year Comorbidity Outcomes in Laparoscopic Vertical Sleeve Gastrectomy (LVSG) and Laparoscopic Roux-en-Y Gastric Bypass (LRYGB): A Systematic Review and Meta-analysis of Randomized Controlled Trials." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 33 (3), pp. 241-248. https://doi.org/10.1097/SLE.0000000000001156
Results and Conclusions of “Five-Year Weight Loss Outcomes in Laparoscopic Vertical Sleeve Gastrectomy (LVSG) Versus Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) Procedures: A Systematic Review and Meta-analysis of Randomized Controlled Trials” Unchanged by Omission of Retracted Ruiz-Tovar et al Article
Osland, Emma J., Yunus, Rossita M., Khan, Shahjahan and Memon, Muhammed A.. 2022. "Results and Conclusions of “Five-Year Weight Loss Outcomes in Laparoscopic Vertical Sleeve Gastrectomy (LVSG) Versus Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) Procedures: A Systematic Review and Meta-analysis of Randomized Controlled Trials” Unchanged by Omission of Retracted Ruiz-Tovar et al Article." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 32 (1). https://doi.org/10.1097/SLE.0000000000001017
Prevalence of acute respiratory infections among children in India: Regional inequalities and risk factors
Hasan, Md Masud, Saha, Kamal Kumar, Yunus, Rossita Mohamad and Alam, Khorshed. 2022. "Prevalence of acute respiratory infections among children in India: Regional inequalities and risk factors." Maternal and Child Health Journal. 26, pp. 1594-1602. https://doi.org/10.1007/s10995-022-03424-3
Late (≥5 y) Complications of Laparoscopic Vertical Sleeve Gastrectomy (LVSG) and Laparoscopic Roux-en-Y Gastric Bypass (LRYGB): A Systematic Review and Meta-analysis of Randomized Controlled Trials
Osland, Emma J., Yunus, Rossita M., Khan Shahjahan and Memon, Muhammed A.. 2022. "Late (≥5 y) Complications of Laparoscopic Vertical Sleeve Gastrectomy (LVSG) and Laparoscopic Roux-en-Y Gastric Bypass (LRYGB): A Systematic Review and Meta-analysis of Randomized Controlled Trials ." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 32 (4), pp. 501-513. https://doi.org/10.1097/SLE.0000000000001065
Systematic reviews: understanding the best evidence for clinical decision-making in health care: pros and cons
Memon, Muhammed A., Khan, Shahjahan, Alam, Khorshed, Rahman, Md Mizanur and Yunus, Rossita M.. 2021. "Systematic reviews: understanding the best evidence for clinical decision-making in health care: pros and cons." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 31 (2), pp. 234-240. https://doi.org/10.1097/SLE.0000000000000889
Prophylactic onlay mesh repair (POMR) versus primary suture repair (PSR) for prevention of incisional hernia (IH) after abdominal wall surgery: a systematic review and meta-analysis
Hassan, Maha Awaiz, Yunus, Rossita Mohamad, Khan, Shahjahan and Memon, Muhammed Ashraf. 2021. "Prophylactic onlay mesh repair (POMR) versus primary suture repair (PSR) for prevention of incisional hernia (IH) after abdominal wall surgery: a systematic review and meta-analysis." World Journal of Surgery. 45, pp. 3080 -3091. https://doi.org/10.1007/s00268-021-06238-6
Weight loss outcomes in laparoscopic vertical sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-Y gastric bypass (LRYGB) procedures: a meta-analysis and systematic review of randomized controlled trials
Osland, Emma, Yunus, Rossita M., Khan, Shahjahan, Memon, Breda and Memon, Muhammed A.. 2017. "Weight loss outcomes in laparoscopic vertical sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-Y gastric bypass (LRYGB) procedures: a meta-analysis and systematic review of randomized controlled trials." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 27 (1), pp. 8-18. https://doi.org/10.1097/SLE.0000000000000374
Diabetes improvement and resolution following laparoscopic vertical sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-Y gastric bypass (LRYGB) procedures: a systematic review of randomized controlled trials
Osland, Emma, Yunus, Rossita Mohamad, Khan, Shahjahan, Memon, Breda and Memon, Muhammed Ashraf. 2017. "Diabetes improvement and resolution following laparoscopic vertical sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-Y gastric bypass (LRYGB) procedures: a systematic review of randomized controlled trials." Surgical Endoscopy: surgical and interventional techniques. 31 (4), pp. 1952-1963. https://doi.org/10.1007/s00464-016-5202-5
Five-Year Weight Loss Outcomes in Laparoscopic Vertical Sleeve Gastrectomy (LVSG) Versus Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) Procedures: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Osland, Emma J., Yunus, Rossita M., Khan, Shahjahan and Memon, Muhammed A.. 2020. "Five-Year Weight Loss Outcomes in Laparoscopic Vertical Sleeve Gastrectomy (LVSG) Versus Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) Procedures: A Systematic Review and Meta-Analysis of Randomized Controlled Trials." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 30 (6), pp. 542-553. https://doi.org/10.1097/SLE.0000000000000834
Suture cruroplasty versus mesh hiatal herniorrhaphy for large hiatal hernias (HHs): an updated meta-analysis and systematic review of randomized controlled trials
Memon, Muhammed A., Siddaiah-Subramanya, Manjunath, Yunus, Rossita M., Memon, Breda and Khan, Shahjahan. 2019. "Suture cruroplasty versus mesh hiatal herniorrhaphy for large hiatal hernias (HHs): an updated meta-analysis and systematic review of randomized controlled trials." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 29 (4), pp. 221-232. https://doi.org/10.1097/SLE.0000000000000655
Anterior Dor or posterior Toupet with Heller Myotomy for Achalasia Cardia: a systematic review and meta-analysis
Siddaiah-Subramanya, Manjunath, Yunus, Rossita Mohamad, Khan, Shahjahan, Memon, Breda and Memon, Muhammed Ashraf. 2019. "Anterior Dor or posterior Toupet with Heller Myotomy for Achalasia Cardia: a systematic review and meta-analysis." World Journal of Surgery. 43 (6), pp. 1563-1570. https://doi.org/10.1007/s00268-019-04945-9
Meta-analysis of histopathological outcomes of laparoscopic assisted rectal resection (LARR) vs open rectal resection (ORR) for carcinoma
Memon, Muhammed Ashraf, Awais, Aiaman, Yunus, Rossita Mohamad, Memon, Breda and Khan, Shahjahan. 2018. "Meta-analysis of histopathological outcomes of laparoscopic assisted rectal resection (LARR) vs open rectal resection (ORR) for carcinoma." The American Journal of Surgery. 216 (5), pp. 1004-1015. https://doi.org/10.1016/j.amjsurg.2018.06.012
A meta-analysis and systematic review of perioperative outcomes of laparoscopic-assisted rectal resection (LARR) versus open rectal resection (ORR) for carcinoma
Memon, Muhammed A., Yunus, Rossita M., Memon, Breda, Awais, Aiman and Khan, Shahjahan. 2018. "A meta-analysis and systematic review of perioperative outcomes of laparoscopic-assisted rectal resection (LARR) versus open rectal resection (ORR) for carcinoma." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 28 (6), pp. 337-348. https://doi.org/10.1097/SLE.0000000000000589
Carbon dioxide vs air insufflation for elective colonoscopy: a meta-analysis and systematic review of randomized controlled trials
Memon, Muhammed A., Memon, Breda, Yunus, Rossita M. and Khan, Shahjahan. 2016. "Carbon dioxide vs air insufflation for elective colonoscopy: a meta-analysis and systematic review of randomized controlled trials." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 26 (2), pp. 102-116. https://doi.org/10.1097/SLE.0000000000000243
Linear model inference with non-sample prior information
Khan, Shahjahan, Pratikno, Budi and Yunus, Rossita M.. 2012. "Linear model inference with non-sample prior information." Ahmad, Munir (ed.) 12th Islamic Countries Conference on Statistical Sciences . Doha, Qatar 19 - 22 Dec 2012 Lahore, Pakistan.
Late postoperative complications in laparoscopic sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-y gastric bypass (LRYGB): meta-analysis and systematic review
Osland, Emma, Yunus, Rossita M., Khan, Shahjahan, Memon, Breda and Memon, Muhammed A.. 2016. "Late postoperative complications in laparoscopic sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-y gastric bypass (LRYGB): meta-analysis and systematic review." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 26 (3), pp. 193-201. https://doi.org/10.1097/SLE.0000000000000279
Postoperative early major and minor complications in laparoscopic vertical sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-Y gastric bypass (LRYGB) procedures: a meta-analysis and systematic review
Osland, Emma, Yunus, Rossita Mohamad, Khan, Shahjahan, Alodat, Tareq, Memon, Breda and Memon, Muhammed Ashraf. 2016. "Postoperative early major and minor complications in laparoscopic vertical sleeve gastrectomy (LVSG) versus laparoscopic Roux-en-Y gastric bypass (LRYGB) procedures: a meta-analysis and systematic review." Obesity Surgery. 26 (10), pp. 2273- 2284. https://doi.org/10.1007/s11695-016-2101-8
Meta-analysis of early endoscopic retrograde cholangiopancreatography (ERCP) ± endoscopic sphincterotomy (ES) versus conservative management for gallstone pancreatitis (GSP)
Burstow, Matthew J., Yunus, Rossita M., Hossain, Md Belal, Khan, Shahjahan, Memon, Breda and Memon, Muhammed A.. 2015. "Meta-analysis of early endoscopic retrograde cholangiopancreatography (ERCP) ± endoscopic sphincterotomy (ES) versus conservative management for gallstone pancreatitis (GSP)." Surgical Laparoscopy, Endoscopy and Percutaneous Techniques. 25 (3), pp. 185-203. https://doi.org/10.1097/SLE.0000000000000142
Laparoscopic vs open repair for incisional hernia
Awaiz, Aiman, Rahman, Foyzur, Hossain, Md Belal, Yunus, Rossita Mohamad, Khan, Shahjahan, Memon, Breda and Memon, Muhammad Ashraf. 2014. "Laparoscopic vs open repair for incisional hernia." Ahmed, Munir (ed.) 13th Islamic Countries Conference on Statistical Sciences . Bogor, Indonesia 18 - 21 Dec 2014 Lahore, Pakistan.
Changes in non-diabetic comorbid disease status following Laparoscopic Vertical Sleeve Gastrectomy (LVSG) versus Laparoscopic Roux-En-Y Gastric Bypass (LRYGB) procedures: a systematic review of randomized controlled trials
Osland, Emma, Yunus, Rossita Mohamad, Khan, Shahjahan, Memon, Muhammed Ashraf and Memon, Breda. 2017. "Changes in non-diabetic comorbid disease status following Laparoscopic Vertical Sleeve Gastrectomy (LVSG) versus Laparoscopic Roux-En-Y Gastric Bypass (LRYGB) procedures: a systematic review of randomized controlled trials." Obesity Surgery. 27 (5), pp. 1208-12221. https://doi.org/10.1007/s11695-016-2469-5
The correlated bivariate noncentral F distribution and its application
Khan, Shahjahan, Pratikno, Budi, Ibrahim, Adriana I. N. and Yunus, Rossita M.. 2016. "The correlated bivariate noncentral F distribution and its application." Communications in Statistics: Simulation and Computation. 45 (10), pp. 3491-3507. https://doi.org/10.1080/03610918.2014.999085
Improving statistical inference with uncertain non-sample prior information
Khan, Shahjahan, Memon, Muhammed Ashraf, Pratikno, Budi and Yunus, Rossita M.. 2015. "Improving statistical inference with uncertain non-sample prior information." Journal of Islamic Countries Society of Statistical Sciences. 1 (1), pp. 1-11.
Reply to comment to Meta-analysis and systematic review of laparoscopic versus open mesh repair for elective incisional hernia. Jensen K, Jorgensen LN
Awaiz, A., Rahman, F., Hossain, M. B., Yunus, R. M., Khan, S., Memon, B. and Memon, M. A.. 2015. "Reply to comment to Meta-analysis and systematic review of laparoscopic versus open mesh repair for elective incisional hernia. Jensen K, Jorgensen LN." Hernia. 19 (6), pp. 1027-1029. https://doi.org/10.1007/s10029-015-1432-z
Meta-analysis and systematic review of laparoscopic versus open mesh repair for elective incisional hernia
Awaiz, A., Rahman, F., Hossain, M. B., Yunus, R. M., Khan, S., Memon, B. and Memon, M. A.. 2015. "Meta-analysis and systematic review of laparoscopic versus open mesh repair for elective incisional hernia." Hernia. 19 (3), pp. 449-463. https://doi.org/10.1007/s10029-015-1351-z
Suture cruroplasty versus prosthetic hiatal herniorrhaphy for large hiatal hernia: a meta-analysis and systematic review of randomized controlled trials
Memon, Muhammed Ashraf, Memon, Breda, Yunus, Rossita Mohamad and Khan, Shahjahan. 2016. "Suture cruroplasty versus prosthetic hiatal herniorrhaphy for large hiatal hernia: a meta-analysis and systematic review of randomized controlled trials." Annals of Surgery. 263 (2), pp. 258- 266. https://doi.org/10.1097/SLA.0000000000001267
Score test in robust M-procedure
Khan, Shahjahan and Yunus, Rossita M.. 2014. "Score test in robust M-procedure." Journal of Applied Probability and Statistics. 9 (2), pp. 55-75.
Laparoscopic anterior versus posterior fundoplication for gastro-esophageal reflux disease: a meta-analysis and systematic review
Memon, Muhammed Ashraf, Subramanya, Manjunath S., Hossain, Md Belal, Yunus, Rossita Mohamad, Khan, Shahjahan and Memon, Breda. 2015. "Laparoscopic anterior versus posterior fundoplication for gastro-esophageal reflux disease: a meta-analysis and systematic review." World Journal of Surgery. 39 (4), pp. 981-996. https://doi.org/10.1007/s00268-014-2889-0
Early versus traditional postoperative feeding in patients undergoing resectional gastrointestinal surgery: a meta-analysis
Osland, Emma, Yunus, Rossita Mohamad, Khan, Shahjahan and Memon, Muhammed Ashraf. 2011. "Early versus traditional postoperative feeding in patients undergoing resectional gastrointestinal surgery: a meta-analysis." Journal of Parenteral and Enteral Nutrition. 35 (4), pp. 473-487. https://doi.org/10.1177/0148607110385698
The bivariate noncentral chi-square distribution – a compound distribution approach
Yunus, Rossita M. and Khan, Shahjahan. 2011. "The bivariate noncentral chi-square distribution – a compound distribution approach." Applied Mathematics and Computation. 217 (13), pp. 6237-6247. https://doi.org/10.1016/j.amc.2010.12.112
Early enteral nutrition within 24 h of intestinal surgery versus later commencement of feeding: a systematic review and meta-analysis [Letter to the Editor]
Osland, Emma, Yunus, Rossita M., Khan, Shahjahan and Memon, Muhammed Ashraf. 2009. "Early enteral nutrition within 24 h of intestinal surgery versus later commencement of feeding: a systematic review and meta-analysis [Letter to the Editor]." Journal of Gastrointestinal Surgery. 13 (6), pp. 1163-1165. https://doi.org/10.1007/s11605-009-0846-2
Meta-analysis of laparoscopic and open distal gastrectomy for gastric carcinoma
Memon, Muhammed Ashraf, Khan, Shahjahan, Yunus, Rossita Mohamad, Barr, Richard and Memon, Breda. 2008. "Meta-analysis of laparoscopic and open distal gastrectomy for gastric carcinoma." Surgical Endoscopy: surgical and interventional techniques. 22 (8), pp. 1781-1789. https://doi.org/10.1007/s00464-008-9925-9
Test for intercept after pre-testing on slope - a robust method
Yunus, Rossita M. and Khan, Shahjahan. 2007. "Test for intercept after pre-testing on slope - a robust method." Ahmad, Munir, Mohamed, Ibrahim, Osman, Jamil and Ibrahim, Noor Akma (ed.) 9th Islamic Countries Conference on Statistical Sciences. Shah Alam, Malaysia 12 - 14 Dec 2007 Kuala Lumpur, Malaysia.
M-tests for multivariate regression model
Yunus, Rossita M. and Khan, Shahjahan. 2011. "M-tests for multivariate regression model." Journal of Nonparametric Statistics. 23 (1), pp. 201-218. https://doi.org/10.1080/10485252.2010.503896
Benefits of early feeding versus traditional nil-by-mouth nutritional postoperative management in gastrointestinal resectional surgery patients: a meta-analysis
Osland, Emma, Yunus, Rossita Mohamad, Khan, Shahjahan and Memon, Muhammed A.. 2010. "Benefits of early feeding versus traditional nil-by-mouth nutritional postoperative management in gastrointestinal resectional surgery patients: a meta-analysis." Amin, Zeinab and Hadi, Ali S. (ed.) 10th Islamic Countries Conference on Statistical Sciences. Cairo, Egypt 20 - 23 Dec 2009 Lahore, Pakistan.
Preliminary results of meta-analysis of endoscopic retrograde cholangiopancreatography (ERCP) versus conservative treatment for gall stone pancreatitis
Burstow, Matthew J., Yunus, Rossita M., Khan, Shahjahan, Memon, Breda and Memon, Muhammed A.. 2010. "Preliminary results of meta-analysis of endoscopic retrograde cholangiopancreatography (ERCP) versus conservative treatment for gall stone pancreatitis." Amin, Zeinab and Hadi, Ali S. (ed.) 10th Islamic Countries Conference on Statistical Sciences. Cairo, Egypt 20 - 23 Dec 2009 Lahore, Pakistan.
Preliminary results of meta-analysis of laparoscopic and open inguinal hernia repair
Burstow, Matthew John, Yunus, Rossita Mohamad, Khan, Shahjahan, Memon, Breda and Memon, Muhammed Ashraf. 2010. "Preliminary results of meta-analysis of laparoscopic and open inguinal hernia repair." Amin, Zeinab and Hadi, Ali S. (ed.) 10th Islamic Countries Conference on Statistical Sciences. Cairo, Egypt 20 - 23 Dec 2009 Lahore, Pakistan.
M-test of two parallel regression lines under uncertain prior information
Khan, Shahjahan and Yunus, Rossita M.. 2010. "M-test of two parallel regression lines under uncertain prior information." Amin, Zeinab and Hadi, Ali S. (ed.) 10th Islamic Countries Conference on Statistical Sciences. Cairo, Egypt 20 - 23 Dec 2009 Lahore, Pakistan.
Increasing the power of the test through pre-test: a robust method
Yunus, Rossita M. and Khan, Shahjahan. 2011. "Increasing the power of the test through pre-test: a robust method." Communications in Statistics: Theory and Methods. 40 (4), pp. 581-597. https://doi.org/10.1080/03610920903350572
M-test for intercept after pre-testing on slope
Yunus, Rossita M. and Khan, Shahjahan. 2010. "M-test for intercept after pre-testing on slope." Journal of Statistical Modeling and Analytics. 1 (1), pp. 45-57.
Increasing power of robust test through pre-testing in multiple regression model
Yunus, Rossita M. and Khan, Shahjahan. 2010. "Increasing power of robust test through pre-testing in multiple regression model." Pakistan Journal of Statistics. 26 (1), pp. 151-170.
Meta-analysis of randomised clinical trials comparing open and laparoscopic anti-reflux surgery
Peters, Matthew James, Mukhtar, Athar, Yunus, Rossita Mohamad, Khan, Shahjahan, Pappalardo, Juanita, Memon, Breda and Memon, Muhammed Ashraf. 2009. "Meta-analysis of randomised clinical trials comparing open and laparoscopic anti-reflux surgery." The American Journal of Gastroenterology. 104 (6), pp. 1548-1561. https://doi.org/10.1038/ajg.2009.176