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Sample Size Determination for Clinical Research


LIVEDHPAMAFACE-TO-FACE

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Add to Calendar Sample Size Determination for Clinical Research 10/14/2026 8:30:00 AM 10/14/2026 4:15:00 PM Asia/Riyadh For More Details: https://wcmq.cloud-cme.com/course/courseoverview?EID=4763 Description: Activity Code: API-02-P289This course enables researchers with the knowledge and skills needed to determine appropriate sample sizes for their studies. Basic theory will be covered, such as confidence intervals, p-values, statistical power of the study, design effect, and more. Participants will learn how to calculate sample sizes for different study designs, such as prevalence studies and parallel-group... Doha, Qatar false MM/DD/YYYY


Date & Location
Wednesday, October 14, 2026, 8:30 AM - 4:15 PM, Doha, Qatar, Doha, Qatar

Overview

Activity Code: API-02-P289

This course enables researchers with the knowledge and skills needed to determine appropriate sample sizes for their studies. Basic theory will be covered, such as confidence intervals, p-values, statistical power of the study, design effect, and more. Participants will learn how to calculate sample sizes for different study designs, such as prevalence studies and parallel-group studies. The course includes practical application through the use of freely available online resources (webpages and software), providing hands-on experience in performing sample size computations for real-world scenarios.

NOTE: Participants are required to have a laptop.


Target Audience
Specialties - Allied Health Professionals, Dentists, Nurses, Pharmacists, Physicians, Researchers, Students

Overall Learning Objective
  1. Demonstrate an understanding to concepts related to sample size computation such as design effect, power, and significance level
  2. Determine the number of participants needed for different study designs commonly used in research, such as prevalence studies, parallel arm clinical trials, and pre-post studies
  3. Use a combination of available software and online calculators to compute the sample size
  4. Determine how to adjust sample size computation for loss to follow-up or the presence of multiple outcomes
  5. Determine the number of participants needed for regression modeling

Registration

Early bird rate until September 14, 2026 USD 66/QAR 240

Regular fees starting September 15, 2026 USD 83/QAR 300

Changes or Cancellations

  • Name changes or substitutions are not permitted.

  • All cancellation and refund requests must be made in writing and submitted via email to [email protected].

  • For a full refund of the registration fee, the cancellation request must be received at least 7 days prior to the session. No refund will be offered for cancellation request thereafter.

  • We will attempt to process the refund within 30 days of receiving any cancellation request.

  • Weill Cornell Medicine-Qatar reserves the right to cancel the course. In the event of a cancellation, fee deposit will be returned, but we will not be responsible for any other expenses including restricted or non-refundable airfare or hotel deposits

REGISTRATION WARNING

Registration for courses managed by Weill Cornell Medicine-Qatar (WCM-Q) can only be completed through WCM-Q's official registration portal. Attendee registrations made through any other sites cannot be honored. WCM-Q is not able to refund fees paid through unaffiliated registration sites, such as eMedEvents.com, MedConfWorld.com, EventEgg.com, and 10times.com.

Please report any unauthorized websites or solicitations for registrations to  [email protected].


Accreditation

DHP 

This activity is an Accredited Group Learning Activity (Category 1) as defined by the Ministry of Public Health's Department of Healthcare Professions-Accreditation Section and is approved for a maximum of 5.75 hours.

The scientific planning committee has reviewed all disclosed financial relationships of speakers, moderators, facilitators and/or authors in advance of this CPD activity and has implemented procedures to manage any potential or real conflicts of interest.


ACCME

The Weill Cornell Medicine-Qatar is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The Weill Cornell Medicine-Qatar designates this Live Activity for a maximum of 5.75 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.


Disclosure of Relationships/Content Validity

It is the policy of Weill Cornell Medicine-Qatar to adhere to the Department of Healthcare Professions (DHP) and Accreditation Council for Continuing Medical Education (ACCME) Criteria, Policies, and Standards for Commercial Support and content validation in order to ensure fair balance, independence, objectivity, and scientific rigor in all its sponsored programs. All faculty participating in sponsored programs are expected to disclose relevant financial relationships pertaining to their contribution to the activity, and any discussions of off-label or investigational uses of approved commercial products or devices, or of any products or devices not yet approved in the United States and elsewhere. WCM-Q CE/CPD activities are intended to be evidence-based and free of commercial bias. 

Scientific Planning Committee: Nabila Chaabna, BSN, Vinoop Viswanathan, PT, Maguy Elhajj, PharmD, Stella Major, MD, Mohammed Al-Saey, DDS, have no relevant financial/non-financial relationships with any for-profit/not-for-profit organizations to disclose and WILL NOT BE DISCUSSING any unlabeled/unapproved use of drugs or products.

Course Faculty: Ziyad Mahfoud, PhD, has no relevant financial/non-financial relationships with any for-profit/not-for-profit organizations to disclose and will not be discussing any unlabeled/unapproved use of drugs or products.

Administrative Contact: Soha Dargham, MPH, has no relevant financial/non-financial relationships with any for-profit/not-for-profit organizations to disclose and will not be discussing any unlabeled/unapproved use of drugs or products.

Mitigation of Relevant Financial Relationships

Weill Cornell Medicine-Qatar adheres to the ACCME’s Standards for Integrity and Independence in Accredited Continuing Education. Any individuals in a position to control the content of a CE activity, including faculty, planners, reviewers or others are required to disclose all relevant financial relationships with ineligible entities (commercial interests). All relevant financial relationships have been mitigated prior to the commencement of the activity.

Member Information
Role in activity
Nature of Relationship(s) / Name of Ineligible Company(s)
Faculty Photos
Soha Dargham, MPH
Senior Biostatistician
Weill Cornell Medicine-Qatar
Doha, Qatar
Administrative Contact
Nothing to disclose
Faculty Photos
Ziyad R Mahfoud, PhD
Professor of Research in Population Health Sciences
Weill Cornell Medicine-Qatar
Doha, Qatar
Course Director, Faculty
Nothing to disclose
Mohammed Al-Saey, DDS
Consultant in Oral Surgery
Aspetar
Doha, Qatar
Planning Committee Member
Nothing to disclose
Nabila Chaabna, MSN
Director of Nursing Research
Hamad Medical Corporation
Doha, Qatar
Planning Committee Member
Nothing to disclose
Maguy S El Hajj, PharmD
Associate Professor and Associate Dean
Qatar University College of Pharmacy
Doha, Qatar
Planning Committee Member
Nothing to disclose
Faculty Photos
stella Major, MBBS
Professor of Family Medicine Teaching in Medicine
PCP Unit Lead & Director of the Clinical Skills & Simulation Lab (CSSL)
Weill Cornell Medicine-Qatar
Doha, Qatar
Planning Committee Member
Nothing to disclose
Vinoop Viswanathan, DPT, Orthopedic Physical Therapist
Physiotherapist
Al Ahli Hospital
Al Dafna, Qatar
Planning Committee Member
Nothing to disclose

Wednesday, October 14, 2026

Registration and introduction
8:30AM - 9:00AM
Pre-assessment
9:00AM - 9:30AM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Identify current knowledge of sample size determination for clinical research

Biostatistics in healthcare literature: An Overview
9:30AM - 10:15AM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Demonstrate an understanding of basic concepts in health research such as power, p-value, confidence intervals, etc.

 

Sample Size for cross sectional studies or prevalence studies
10:15AM - 11:00AM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Compute the sample size required to construct a confidence interval for a prevalence

 

Coffee Break
11:00AM - 11:30AM
Sample size for randomized controlled trials
11:30AM - 12:30PM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Compute sample size for the independent t-test, the log rank test, and the chi-squared test

Sample size for pre-post studies
12:30PM - 1:15PM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Compute sample size for the paired t-test

Lunch and Prayers
1:15PM - 2:15PM
Adjusting sample size computation for other factors
2:15PM - 2:45PM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Compute sample size taking into consideration loss to follow-up and multiple testing

Sample size for regression analysis using rules of thumb
2:45PM - 3:15PM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Compute sample size for linear, logistic, and Cox regressions using different rules of thumb

Case studies and Q/A (Interactive session)
3:15PM - 4:00PM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Apply the sample size knowledge to examples from the real world

Post-assessment
4:00PM - 4:15PM
Ziyad R Mahfoud, PhD (Speaker)

Objectives:

At the end of this session, participants will be able to:

1. Summarize the key learning points

2. Evaluate to which extent the learning objectives were met

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