CISA Information System Auditing Process Practice Question
Which of the following is a characteristic of non-statistical (judgmental) sampling?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The auditor uses professional judgment to select sample items
Non-statistical sampling relies on the auditor's judgment and does not use probability theory.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Every item has an equal chance of selection
Why it's wrong here
Equal chance is a property of random sampling.
- ✓
The auditor uses professional judgment to select sample items
Why this is correct
Judgmental sampling is based on auditor expertise.
- ✗
The sample size is determined using statistical formulas
Why it's wrong here
Statistical formulas are used in statistical sampling.
- ✗
The sample results can be projected to the population with known confidence
Why it's wrong here
Projection is possible with statistical sampling.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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