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Preparation Materials

Public safety exam study guides and practice tests.

Study
Materials

study guides

Test preparation materials can enhance a candidate’s overall performance. IOS practice tests and study guides are great tools for applicants who aren’t familiar with IOS exams. Candidates can purchase these materials for themselves. However, many hiring agencies offer materials to improve the quality of their candidates. Most materials are available in electronic (online) and hard copy (paper) formats.

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Law Enforcement Exam Preparation Materials

National Criminal Justice Officer Selection Inventory Squared – NCJOSI² Preparation Materials

IOS study guides and practice tests are helpful tools for candidates preparing for the NCJOSI² exam. Practice exams cover the same areas as the actual exam, and allow applicants to revisit incorrect answers and view correct responses online. Study guides include test taking strategies, rules, and sample questions. NCJOSI² prep materials come in three tiers for varying degrees of test preparation: Elite, Enhanced, and Standard. Candidates seeking the greatest amount of practice should consider the Elite tier.

Law Enforcement Officer Selection Tool – LST Preparation Materials

The LST is more challenging than most other law enforcement examinations. IOS study guides and practice tests are helpful tools for candidates preparing for the LST exam. Practice exams cover the same areas as the actual exam, and allow applicants to revisit incorrect answers and view correct responses online. Study guides include test taking strategies, rules, and sample questions. LST prep materials come in three tiers for varying degrees of test preparation: Elite, Enhanced, and Standard. Candidates seeking the greatest amount of practice should consider the Elite tier.

CWH Next Generation Law Enforcement Preparation Materials

An IOS study guide is a helpful tool for candidates preparing for the CWH Next Generation Law Enforcement Exam. This study guide includes an overview of the exam’s content, test taking tips, example items, and practice questions.

CWH Selection Solutions Law Enforcement Preparation Materials

An IOS study guide is a helpful tool for candidates preparing for the CWH Selection Solutions Exam. This study guide includes an overview of the exam’s content, test taking tips, example items, and practice questions.

National Criminal Justice Officer Selection Inventory – NCJOSI Preparation Materials

IOS study guides and practice tests are helpful tools for candidates preparing for the NCJOSI exam. Practice exams cover the same areas as the actual exam, and allow applicants to revisit incorrect answers and view correct responses online. Study guides include test taking strategies, rules, and sample questions. NCJOSI prep materials come in three tiers for varying degrees of test preparation: Elite, Enhanced, and Standard. Candidates seeking the greatest amount of practice should consider the Elite tier.

National Basic Abilities Test for Law Enforcement Officers – NBAT-LEO Preparation Materials

Candidates prepping for the NBAT exam can review IOS study guides prior to testing. Study guides include test taking strategies, rules, and sample questions. NBAT study guides are available in hard copies and online.

Law Enforcement Promotional Exam Preparation Materials

Core Concepts for Law Enforcement Management and Fundamentals of Law Enforcement Management are comprehensive textbooks that accompany IOS’ off-the-shelf promotional examinations. These textbooks are necessary for the Core Concepts and Fundamentals exam series.

State and Regional Test Preparation Materials for Law Enforcement

IOS offers state/regional study guides and practice tests that are custom designed for area-specific exams. Offering types vary by region.

Fire Service Exam Preparation Materials

National Firefighter Selection Inventory – NFSI Preparation Materials

IOS study guides and practice tests are helpful tools for candidates preparing for the NFSI exam. Practice exams cover the same areas as the actual exam, and allow applicants to revisit incorrect answers and view correct responses online. Study guides include test taking strategies, rules, and sample questions. NFSI prep materials come in three tiers for varying degrees of test preparation: Elite, Enhanced, and Standard. Candidates seeking the greatest amount of practice should consider the Elite tier.

Firefighter Selection Tool – FST Preparation Materials

IOS study guides and practice tests are helpful tools for candidates preparing for the FST exam. Practice exams cover the same areas as the actual exam, and allow applicants to revisit incorrect answers and view correct responses online. Study guides include test taking strategies, rules, and sample questions. FST prep materials come in three tiers for varying degrees of test preparation: Elite, Enhanced, and Standard. Candidates seeking the greatest amount of practice should consider the Elite tier.

CWH Next Generation Firefighter Exams Preparation Materials

An IOS study guide is a helpful tool for candidates preparing for the CWH  Next Generation Firefighter Exam. This study guides includes an overview of the exam’s content, test taking tips, example items, and practice questions.

CWH Selection Solutions Firefighter Exams Preparation Materials

An IOS study guide is a helpful tool for candidates preparing for the CWH Selection Solutions Exam. This study guides includes an overview of the  exam’s content, test taking tips, example items, and practice questions.

State and Regional Test Preparation Materials for Firefighters

IOS offers state/regional study guides and practice tests that are custom designed for area-specific exams. Offering types vary by region.

General Preparation Materials for Firefighters

IOS offers general study guide materials that are designed to prepare applicants for the exam process. 

Corrections Exam Preparation Materials

National Correctional Officer Selection Inventory – NCOSI Preparation Materials

IOS offers a study guide to help candidates prepare for the NCOSI exam. The study guides features an overview of test content, examples, tips and strategies.

National Basic Abilities Test for Law Enforcement Officers – NBAT-CO Preparation Materials

Candidates prepping for the NBAT exam can review IOS study guides prior to testing. Study guides include test taking strategies, rules, and sample questions. NBAT study guides are available in hard copies and online.

State and Regional Test Preparation Materials for Correctional Officers

IOS offers state/regional study guides and practice tests that are custom designed for area specific exams. Offering types vary by region.

Dispatch Exam Preparation Materials

Dispatcher Selection Tool – DST Preparation Materials

IOS study guides are helpful tools for candidates preparing for the CWH Selection Solutions and Next Generation Firefighter Exams. Study guides include an overview of the respective exam’s content, test taking tips, example items, and practice questions.

General Preparation Materials for Dispatch

IOS offers general study guide materials that are designed to prepare applicants for the exam process. 

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