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SCDM CCDM Exam
Certified Clinical Data Manager (Page 4 )

Updated On: 7-Feb-2026
Page 4 of 31
PDF with 150 Questions

An organization is using an international data exchange standard and a new version is released.
Which of the following should be assessed first?

  1. Availability of other standards covering the same content
  2. Existence of backwards compatibility
  3. Content coverage of the new version
  4. Cost of migrating to the new version

Answer(s): B

Explanation:

When an updated version of a data exchange standard (such as CDISC SDTM, ADaM, or ODM) is released, the first factor that should be assessed is backwards compatibility. This determines whether the new version can interoperate with or accept data from prior versions without significant reconfiguration or data loss.
According to the Good Clinical Data Management Practices (GCDMP) and CDISC Implementation Guides, assessing backwards compatibility ensures that historical or ongoing study data remain valid and usable within the updated environment. If the new version introduces structural or semantic changes (such as variable name modifications or controlled terminology updates), it could impact mapping, validation, or regulatory submissions.
Once backward compatibility is confirmed, secondary assessments such as content coverage, availability of overlapping standards, and migration cost can be considered. However, ensuring that the new version supports existing infrastructure and data continuity is the first critical step before adoption.


Reference:

(CCDM-Verified Sources)
SCDM GCDMP, Chapter: Standards and Data Integration, Section 4.2 ­ Data Standards Updates and Compatibility Considerations
CDISC SDTM Implementation Guide, Section 1.5 ­ Backward Compatibility and Version Control ICH E6(R2) GCP, Section 5.5 ­ Data Handling and Standardization



Which is the most important reason for why a data manager would review data before a monitor reviews it?

  1. Data managers write the Data Management Plan that specifies the data cleaning workflow.
  2. Data can be viewed and discrepancies highlighted prior to a monitor's review.
  3. Data managers have access to programming tools to identify discrepancies.
  4. The GCDMP recommends that data managers review data prior to a monitor's review.

Answer(s): B

Explanation:

The primary reason data managers review data before a monitor's review is to identify and flag discrepancies or inconsistencies so that site monitors can focus their efforts more efficiently during on-site or remote source data verification (SDV).
According to the Good Clinical Data Management Practices (GCDMP, Chapter on Data Validation and Cleaning), proactive data review by data management staff ensures data completeness and accuracy by identifying missing, inconsistent, or out-of-range values. This pre-review helps streamline the monitoring process, reduces the volume of open queries, and enhances data quality. Option A is true but not the main reason for pre-monitor review. Option C highlights a capability rather than a rationale. Option D is partially correct, but the GCDMP emphasizes process purpose, not prescriptive order. Thus, option B correctly captures the practical and process-oriented reason for early data review--to ensure data are ready and accurate for the monitor's review phase.


Reference:

(CCDM-Verified Sources)
SCDM GCDMP, Chapter: Data Validation and Cleaning, Section 5.3 ­ Data Review Timing and Purpose ICH E6(R2) GCP, Section 5.18 ­ Monitoring and Data Verification Requirements



Which is the best way to see site variability in eligibility screening?

  1. List eligibility waivers by site
  2. Summarize screening rate by site
  3. Graph enrollment by site
  4. Plot eligibility rate by site

Answer(s): D

Explanation:

To identify site variability in eligibility screening, the most effective approach is to plot eligibility rate by site. This allows visual detection of differences in how well each site screens subjects according to protocol-defined inclusion and exclusion criteria.
The GCDMP (Chapter: Data Quality Assurance and Metrics) emphasizes the importance of graphical analysis for identifying anomalies and site-level performance variability. By plotting the eligibility rate by site, data managers and clinical operations teams can quickly identify outliers--sites that screen too many or too few eligible subjects--indicating potential training issues, misunderstanding of inclusion/exclusion criteria, or even possible protocol deviations.
While summarizing screening rate (B) provides useful numeric data, it lacks visual comparability. Listing waivers (A) or enrollment counts (C) provide limited insights into eligibility consistency. Therefore, option D--Plot eligibility rate by site--is the best analytic and visualization practice to assess site variability in screening outcomes.


Reference:

(CCDM-Verified Sources)
SCDM GCDMP, Chapter: Data Quality Assurance and Control, Section 6.1 ­ Use of Metrics and Graphical Review for Site Performance
ICH E6(R2) GCP, Section 5.18.4 ­ Identification of Systematic or Site-Specific Issues



The primary reason for system validation is to:

  1. Allow a system to be used by its intended users.
  2. Fulfill the validation plan.
  3. Meet regulatory requirements.
  4. Prove the system being tested works as intended.

Answer(s): D

Explanation:

The primary purpose of system validation in clinical data management is to demonstrate and document that the computerized system performs as intended--accurately, reliably, and consistently--throughout its lifecycle.
According to the Good Clinical Data Management Practices (GCDMP, Chapter on System Validation) and FDA 21 CFR Part 11, validation ensures that all system functions (e.g., data entry, edit checks, audit trails, security) work as designed, providing data integrity, traceability, and regulatory compliance. The focus is on fitness for intended use, meaning the system reliably produces correct and reproducible results in the context of its operational environment.
While meeting regulatory requirements (option C) and fulfilling a validation plan (option B) are components of the process, they are not the ultimate purpose. The essential goal is ensuring that the system performs as intended, maintaining accuracy and data integrity for clinical trial operations.


Reference:

(CCDM-Verified Sources)
SCDM GCDMP, Chapter: Computerized Systems and System Validation, Section 5.2 ­ Purpose and Scope of System Validation
FDA 21 CFR Part 11 ­ Validation of Computerized Systems for Intended Use ICH E6(R2) GCP, Section 5.5.3 ­ Computerized System Validation and Data Integrity



With the implementation of EDC, which company Standard Operating Procedure (SOP) would require updates for new procedures of handling data?

  1. Handling External Data
  2. Coding Medical and Clinical Terms
  3. Data Backup, Recovery, and Contingency Plans
  4. Data Review and Validation

Answer(s): D

Explanation:

When a company transitions from paper-based data capture to Electronic Data Capture (EDC) systems, one of the most critical areas requiring procedural updates is the Data Review and Validation SOP. The introduction of EDC systems fundamentally changes how data is collected, reviewed, validated, and queried.
According to the Good Clinical Data Management Practices (GCDMP), the implementation of EDC introduces real-time data entry and review, automated edit checks, and electronic query management. These functionalities necessitate revised procedures to define how data validation, discrepancy management, and monitoring are conducted electronically. The SOP must specify roles, responsibilities, system access controls, and processes for electronic source verification (eSource), ensuring compliance with 21 CFR Part 11 and ICH E6 (R2) requirements. Other SOPs such as Handling External Data or Data Backup may require minor updates, but the Data Review and Validation SOP undergoes the most extensive change because EDC technology shifts validation responsibilities from post-data entry review to real-time oversight within the system.


Reference:

(CCDM-Verified Sources)
SCDM Good Clinical Data Management Practices (GCDMP), Chapter: Electronic Data Capture (EDC) Systems, Section 6.3 ­ SOP Adaptation for EDC Implementation FDA 21 CFR Part 11 ­ Electronic Records; Electronic Signatures ICH E6 (R2) Good Clinical Practice, Section 5.5.3 ­ Data Handling and Validation



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