CCDM Data Validation 4

Question 1

What is the primary regulatory expectation for audit trails in clinical database systems under 21 CFR Part 11?

Accepted Answer

Audit trails must be computer-generated, time-stamped, and capture all changes to electronic records

Answer

21 CFR Part 11 requires that electronic systems maintain secure, computer-generated, time-stamped audit trails that record all data creation, modification, and deletion events.

Question 2

In clinical data validation, what does 'referential integrity' mean in the context of relational databases?

Accepted Answer

That relationships between linked database tables remain consistent and valid

Answer

Referential integrity ensures that relationships between tables in a relational database are maintained, preventing orphaned records or broken foreign key links.

Question 3

A validation check flags a subject whose date of death is recorded before their last known alive date. This is an example of which category of error?

Accepted Answer

Temporal inconsistency error

Answer

A temporal inconsistency error occurs when dates or time sequences are recorded in an order that is logically impossible, such as a death date preceding a survival date.

Question 4

What is the term for the process of comparing data entered into the clinical database against the original source documents at the investigative site?

Accepted Answer

Source Data Verification (SDV)

Answer

Source Data Verification (SDV) is the process by which a monitor compares data in the clinical database or CRF against original source documents at the site to confirm accuracy.

Question 5

Which approach to data validation involves applying statistical methods to identify data patterns that suggest errors or fraud without visiting the site?

Accepted Answer

Risk-Based Monitoring (RBM) with centralized monitoring

Answer

Risk-Based Monitoring uses centralized statistical and analytical techniques to detect unusual data patterns, potential fraud, or systematic errors remotely.

(CCDM) Certified Clinical Data Manager Practice Test

(CCDM) Certified Clinical Data Manager Practice Test

CCDM Data Validation 4