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descriptive, predictive, prescriptive — know which is which

HR Reporting and Analytics

4

Analytics Levels

Descriptive → Prescriptive

1

Source of Truth

One system, one number

90%

Stop at L1-2

Most HR stays at descriptive/diagnostic

four floors of analytics

The Analytics Pyramid

Each level builds on the last. Most HR stays at the base. Real impact lives near the top — and costs more to reach.

L1

Descriptive

L2

Diagnostic

L3

Predictive

L4

Prescriptive

L1 · Descriptive

cost: low

What happened?

example

Q3 turnover was 12%

L2 · Diagnostic

cost: medium

Why did it happen?

example

Engineering manager X had 6 of those exits

L3 · Predictive

cost: high

What will happen?

example

7 employees scored high flight-risk for Q4

L4 · Prescriptive

cost: highest

What should we do?

example

Stretch role + comp adjustment for top 3

Common HR Reports

Headcount
Turnover (vol/invol)
Time-to-fill
Cost-per-hire
Diversity metrics
Compa-ratio dist.
Training completion
Engagement score

Exam Traps

Single source of truth is the GOAL

Conflicting headcount numbers across HR, finance, and IT systems is a data governance failure. The exam tests this principle.

Predictive models inherit historical bias

Flight risk scores trained on past turnover can systematically disadvantage groups whose past departures were caused by prior bias.

Average pay ≠ pay equity analysis

Pay equity requires comparing similarly situated employees, not raw averages. The exam tests this nuance.

Dashboards must be ROLE-based

Executive dashboards focus on different metrics than line manager dashboards. One-size-fits-all dashboards fail.

Forecasting alone = predictive

If the question describes a model RECOMMENDING an action, that is prescriptive. Forecasting alone is predictive.

One source of truth

Conflicting headcount numbers across HR, finance, and IT is a data governance failure to fix, not a fact of life.

1
Descriptive — what happened

Temperature today is 72 degrees. Just the data.

2
Diagnostic — why it happened

Temperature is 72 because a warm front moved through.

3
Predictive — what will happen

Tomorrow will be 75 degrees.

4
Prescriptive — what to do

Wear short sleeves. Pack an umbrella for the afternoon.

What. Why. What-next. What-to-do. Four levels of HR analytics.
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Reviewed by Sarah L., PrepSolution Content Editor, HR
Sources verified against HRCI 2026 standards
Updated May 2026