911 dispatcher hiring assessments
POST Dispatcher Practice Test
Timed practice for California's POST entry-level dispatcher test: eleven short tests of memory, rules-based priority setting, reading and reasoning, sentence clarity, listening with notes, and fast checking of codes and lists. Answers are marked on paper, five of the tests play audio, and wrong answers cost you points.
Read this before you use any general test-taking advice
POST subtracts a fraction of a point for each wrong answer, and a blank counts neither for nor against you. Answer when you can rule out at least one option; leave it blank when you genuinely have no basis to choose. This is the exception to the usual 'never leave a blank' advice, and it applies to this test specifically.
How it is delivered
Given in person through the hiring agency. Six of the eleven tests are written and five play audio of simulated calls and radio traffic, and every answer is marked on paper. There is no keyboard component, so do some of your practice on paper, with a clock.
DispatchDrills is an independent practice-test provider. We are not affiliated with, endorsed by, or sponsored by California Commission on Peace Officer Standards and Training, and POST Entry-Level Dispatcher Selection Test Battery is California Commission on Peace Officer Standards and Training's property. The name is used here descriptively, to identify the assessment our practice material prepares you for. All of our practice questions are original work. Full disclaimer.
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What the POST dispatcher test is
California's standard written test for public safety dispatchers: eleven short tests of verbal, reasoning, memory and perceptual ability. Six are written and five play audio, answers are marked on paper, and scores are reported as T-scores.
Published by California Commission on Peace Officer Standards and Training.
Read the full guide: POST Dispatcher Test: All 11 Sub-Tests, Scoring and Prep →
The honest answer
What score do you need?
Reported as a T-score rather than a percentage, where 50 is the reference-group average. POST sets no pass mark: each agency sets its own minimum, and POST recommends that agencies set it within an overall T-score range of 48 to 57. That is guidance to agencies, not a guaranteed pass mark. Scoring also deducts a fraction of a point for each wrong answer, so a blind guess has no expected advantage.
Note the distinction in that paragraph, because it is the whole thing. POST recommends a range to agencies; agencies choose their own number. That recommendation is a real, published figure and we will quote it. A guaranteed pass mark is a different claim, and no such thing exists — any site telling you “you need a 55” is telling you about one department, or about nothing.
The practical consequence is that the only number worth having is the one your agency uses. It is on the job posting more often than candidates expect, and when it is not, asking the recruiter is a normal question that gets a normal answer. Our guide to dispatcher test scores explains how agencies set and combine them.
Practice drills for the POST dispatcher test
Each drill below trains an ability one or more of the eleven POST tests measures. Our drills run on screen; the real test is marked on paper, so do some practice on paper too.
Character Comparison
Decide whether two strings of letters and numbers are identical.
Sentence Clarity
Choose the clearer, better-constructed version of a sentence.
Reading Comprehension
Answer questions on a short passage of procedural text.
Memory & Recall
Study details for a short period, then answer from memory.
Prioritization
Rank simultaneous incidents by which needs a response first.
Want a longer run? The full mock exam strings several drills together under one clock, and free practice lists everything you can use without paying.
How to prepare for the POST dispatcher test
Ordered roughly by how much difference each one makes.
Know that a wrong answer costs more than a blank
POST subtracts a fraction of a point for each wrong answer, and a blank counts neither for nor against you, so answering at random has no expected advantage. That makes this the one place where the standard advice — answer everything, never leave a blank — will cost you. Answer where you can eliminate at least one option. Leave it blank where you genuinely have no basis to choose.
Apply the printed rules, not your instincts
Setting Priorities and Assigning Field Units give you a new set of rules and ask you to apply them. The right answer is whatever those rules produce, not what a real dispatch center would do. Read the rules slowly once, then apply them literally every time.
Practice listening with notes, and without
Five tests use audio. You may take notes during Call-Taking and Oral Directions, and the notes are not scored, so build a fast shorthand with the location first. You may not take notes during Recalling Facts & Details, so practice holding a spoken description in your head too.
Do not panic when the pace gets ahead of you
POST warns that some tests speed up until nobody can keep up. Falling behind on a speeded test is expected and says nothing about the next test, which is scored separately. Each of the eleven tests counts equally toward your total.
Understand the T-score and ask for your agency's minimum
Results are reported as a T-score, where 50 is the reference average, not a percentage. POST sets no pass mark; each agency sets its own, and POST recommends it fall within 48 to 57 on the overall T-score. The number that decides your outcome is the one your department uses, and asking the recruiter is normal.
Do a full-length run on paper
The battery takes about two and a half to three hours including a short break, and it is marked on paper, not a screen. If all of your practice has been on a screen, do at least one long run with a pencil and a clock so the format is not the novel part on the day.
Guides for the POST dispatcher test
POST Dispatcher Test: All 11 Sub-Tests, Scoring and Prep
California's POST dispatcher test, from POST's own guide: the 11 sub-tests, the penalty for wrong answers, T-scores, the 48–57 range and how to prepare.
Memory and Recall on Dispatcher Tests: Format and Techniques
How memory sections on dispatcher tests work, why the distraction task is the real test, and the chunking and slot-order techniques that fix it.
How to Prioritize Simultaneous Incidents
Life safety, in-progress, confirmed: how to sort a whole set of calls rather than pairs, avoid the loudness trap, and remember that local protocol governs.
Dispatcher Test Scores Explained: Is There a Passing Score?
Is there a passing score on the CritiCall test? Why dispatcher batteries have no universal pass mark, how modular scoring works, and what to aim for.
Staying Accurate Under Time Pressure Without Panicking
How to pace a timed dispatcher test, stop the panic spiral, decide when to guess or skip, and design practice that trains recovery instead of only good runs.
How to Become a 911 Dispatcher: The Hiring Process Step by Step
A step-by-step walkthrough of the 911 dispatcher hiring process, from finding the posting through testing, background investigation, academy, and training.
Common questions
What is on the POST dispatcher test?
Eleven short tests: Public Safety Bulletin, Assigning Field Units, Evaluating Facts, Setting Priorities, Reading Comprehension, Sentence Clarity, Recalling Facts and Details, Call-Taking, Oral Directions, Checking Coded Information, and Checking and Listening. They measure verbal, reasoning, memory and perceptual ability. There is no typing, spelling or job-knowledge test.
What T-score do I need to pass?
POST does not set one. Each agency sets its own minimum, and POST recommends that agencies set it within an overall T-score range of 48 to 57. That is guidance to departments rather than a pass mark, so check the posting or ask the agency.
Is guessing penalized?
Yes. POST subtracts a fraction of a point for each wrong answer, and a blank item counts neither for nor against you. Answer where you can eliminate at least one option; leave it blank where you cannot. If the instructions on the day say anything different, the instructions govern.
Is it on a computer or on paper?
On paper. Six tests are written and five play audio, with every answer marked in the booklet or on the answer sheet, which is sent to POST for scanning. There is no keyboard component, although many agencies run a separate typing test of their own.
Is there an official study guide?
POST publishes a free Examinee Guide describing each test format with a simplified sample item. It says there is no study guide or reading list, because the battery measures general abilities rather than knowledge.
Is this test used outside California?
It is published by the California Commission on Peace Officer Standards and Training for California agencies, and even in California some agencies use other job-related tests. If you are applying elsewhere, check which test that agency uses.
Do you reproduce the actual test questions?
No. All of our practice questions are original work. We do not reproduce live examination material, and we will not accept it from candidates who have sat the test.
Dispatcher requirements in California
Which test you sit is an agency decision everywhere. What changes by state is the certification and training layer.
Practice every ability the battery measures
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