CCDM Data Validation 3

Question 1

In an EDC system, what is the function of a 'hard stop' edit check?

Accepted Answer

It prevents the user from saving the record until the invalid entry is corrected

Answer

A hard stop edit check prevents the data entry operator from saving or advancing past a field until the entered value satisfies the validation rule.

Question 2

What is the key difference between a 'soft' edit check and a 'hard' edit check in clinical data management?

Accepted Answer

Soft checks issue a warning but allow data saving; hard checks block saving until resolved

Answer

Soft edit checks alert the user to a potential issue but allow the record to be saved with an override or explanation, while hard edit checks prevent saving until the error is corrected.

Question 3

Which document formally describes all programmed edit checks for a clinical trial database?

Accepted Answer

Edit Check Specifications (ECS)

Answer

The Edit Check Specifications document formally defines the logic, parameters, and expected behavior of all programmed validation checks in the clinical database.

Question 4

Laboratory normal ranges used in clinical trial edit checks should ideally be sourced from which location?

Accepted Answer

The central laboratory providing services for the trial

Answer

Normal reference ranges should come from the specific central laboratory performing the assays, as ranges vary by lab methodology, equipment, and population.

Question 5

What is the purpose of a 'derivation check' in clinical data validation?

Accepted Answer

To confirm that derived or calculated fields are computed correctly from their source variables

Answer

A derivation check validates that programmatically calculated fields, such as BMI from height and weight, produce the mathematically correct result.

(CCDM) Certified Clinical Data Manager Practice Test

(CCDM) Certified Clinical Data Manager Practice Test

CCDM Data Validation 3