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Free NCJOSI Exam Prep

National Criminal Justice Officer Selection Inventory (NCJOSI²)

Prepare for the NCJOSI exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

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Your Study Path

NCJOSI Civil Service Exams: Study Roadmap

Follow this path to organize your exam preparation

1

Phase 1: Exam Structure, Test Rules & PacingYou are here

Learn the 80 + 120 item structure, the 2.5-hour time limit, IOS's no-calculator and photo-ID rules, and a pacing plan.

3
hours
2

Phase 2: Verbal Comprehension

Practice recalling details and meaning from policy passages, reports and witness statements, answering only from the text.

5
hours
3

Phase 3: Verbal Expression

Drill commonly misspelled report words, confusable pairs such as than/then, and grammatically correct word choice.

5
hours
4

Phase 4: Deductive Reasoning

Apply laws and policies given in a passage to specific situations, including conditional 'only if' and 'unless' rules.

5
hours
5

Phase 5: Inductive Reasoning & Graphs

Read tables, bar graphs and pie charts to identify trends and judge whether a strategy worked.

5
hours
6

Phase 6: Problem Sensitivity

Identify the main problem, the problem likely to arise and the best next step in short scenarios.

4
hours
7

Phase 7: Spatial Orientation

Use a map and compass to find the least-distance route and to locate objects relative to one another.

4
hours
8

Phase 8: Information Gathering, Selective Attention, Flexibility of Closure & Visualization

Order five or six statements, link witness accounts, match symbol strings exactly, find hidden shapes and recognize changed faces.

5
hours
9

Phase 9: Section II Integrity Measure

Learn the five-point agreement scale and IOS's advice to answer honestly, and review the four integrity domains.

3
hours
10

Phase 10 (Original NCJOSI Only): Mathematical Reasoning

Practice calculator-free arithmetic, percentages, ratios, perimeter, area and circumference word problems.

4
hours
Estimated total study time
43 hours
That's about 5 weeks at 10 hours/week

Can You Take the NCJOSI Exam?

Check if you meet the basic eligibility requirements

Age
Set by the hiring agency; most require applicants to be at least 18 or 21, and some set a maximum entry age.
Education
High school diploma or equivalent at minimum; some agencies require some college credit.
Experience
No prior law-enforcement experience required for entry-level testing.
Background Check
Comprehensive background investigation including criminal history, driving record, drug screening, and often polygraph and psychological evaluation.
Additional Requirements
  • •U.S. citizenship usually required (some agencies accept permanent residents).
  • •Valid driver's license.
  • •Vision, hearing, and medical/fitness standards apply at the agency level.

NCJOSI Quick Facts

Time to Get Licensed

4-6 weeks for most law enforcement candidates

From start to license in hand

Exam Provider

I/O Solutions (Industrial/Organizational Solutions)

Schedule Your Exam

Retake Policy

Set by each hiring agency; IOS does not publish a retake policy for the NCJOSI².

Total Cost Breakdown

Exam FeeSet by the hiring agency or its testing administrator; IOS does not publish a candidate fee
Total Estimated CostNot published by IOS; check your agency's testing notice. Optional IOS study materials cost $9.99 to $39.99.
Why Choose Us

Free NCJOSI Prep Tools

Reported exam pass rate: I/O Solutions does not publish a national NCJOSI pass rate; cut scores and pass rates vary by hiring agency.. These figures describe exam candidates, not OpenExamPrep user outcomes. Check the exam sponsor’s website for published statistics.

100 Practice Questions

Practice reading, grammar, spelling, reasoning, maps and math, plus officer judgment and integrity scenarios.

Comprehensive Topic Review

Detailed guides for both Section I (80 cognitive items) and Section II (120 non-cognitive/integrity items).

Free Access

Use all NCJOSI practice resources at no cost — no registration or credit card required.

Subtest-Specific Practice

Master reasoning, reading, grammar, math, memory, maps, and behavioral integrity independently.

Compare:
Kaplan $300+•Achievable $200+•OpenExamPrep $0

What You'll Study

10 chapters covering the exam topics in this guide

NCJOSI Exam Details

National Criminal Justice Officer Selection Inventory (NCJOSI²)

Administered by I/O Solutions (Industrial/Organizational Solutions)

Official Source
Set by each hiring agency; IOS does not publish a national passing score
Passing Score
200
Questions
2.5
Hours
Set by the hiring agency or its testing administrator; IOS does not publish a candidate fee for the NCJOSI²
Exam Fee
Study time: 20-40 hours
Prerequisites: Required step in the police-officer entrance process for agencies that contract with I/O Solutions; candidates must usually meet basic eligibility (age, education, citizenship) before sitting for the exam
Valid for: Set by each hiring agency (eligibility list duration varies by jurisdiction)

Exam Content Breakdown

Based on the official I/O Solutions (Industrial/Organizational Solutions) content outline

Section I — Deductive ReasoningNot published

Applying general rules, such as laws and policies given in a passage, to a specific situation to decide the best course of action.

Section I — Flexibility of ClosureNot published

Finding which of four objects is hidden in a figure; the object may be larger, smaller or rotated but keeps identical proportions.

Section I — Inductive ReasoningNot published

Combining separate pieces of information from tables, bar graphs or pie graphs to identify trends and judge whether strategies worked.

Section I — Information GatheringNot published

Following a given rule to put five or six statements in chronological or logical order, or linking details across witnesses' statements.

Section I — Problem SensitivityNot published

Telling when something is wrong or likely to go wrong: identifying the main problem, the problem likely to arise, or the step to take.

Section I — Selective AttentionNot published

Completing a task despite distraction or monotony by choosing the option that exactly matches a string of letters, numbers and symbols.

Section I — Spatial OrientationNot published

Using a map and compass to choose the shortest (least-distance) route or to tell where one location is in relation to another.

Section I — Verbal ComprehensionNot published

Reading a passage and recalling its details and meaning, as officers do with bulletins, statutes, ordinances and policies.

Section I — Verbal ExpressionNot published

Choosing correctly spelled words, finding misspellings and choosing grammatically correct words or phrases in sentences.

Section I — VisualizationNot published

Imagining how something looks after changes; IOS's samples match a person in profile to a headshot after changes in hair, facial hair or expression.

Section II — Non-Cognitive (Integrity) Measure120 statements

Statements rated on a five-point agreement scale (1 = Strongly Agree to 5 = Strongly Disagree) across four IOS domains: Anti-Social Behaviors, Positive Outlook, Orderliness/Diligence and Socialization; not scored as right or wrong.

What's Included

10 Chapters

Complete exam coverage

Practice Quizzes

With detailed explanations

Free to Start

No credit card required

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What's Next After the NCJOSI?

After passing the NCJOSI, you can pursue these career paths

NPOST

Adjacent police-officer entrance exam published by Stanard & Associates and used by many law enforcement agencies.

Coming Soon

CJBAT

State-specific entry-level law enforcement assessment used across Florida criminal justice selection.

Coming Soon

POST Entry-Level Exam

State Peace Officer Standards and Training entry tests, such as California's POST Entry-Level Law Enforcement Test Battery (PELLETB), used where agencies do not contract with IOS.

Coming Soon

NCJOSI Exam FAQ

Official I/O Solutions (Industrial/Organizational Solutions) Resources

Verify information with these official sources

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Review the study guide, practice key concepts, and use the free tools at your own pace.