Preparing for a Polygraph Test: Dos and Don’ts
Polygraph tests, commonly known as lie detector tests, are used in various scenarios, from pre-employment screenings to criminal investigations. While these tests are not foolproof, they can be a source of anxiety for many. Preparing adequately can help reduce stress and ensure the most accurate results. In this guide, we’ll explore essential dos and don’ts to help you prepare effectively for a polygraph test.
Understanding the Polygraph Test
The polygraph test measures physiological responses such as heart rate, blood pressure, respiration, and skin conductivity while the subject answers a series of questions. The premise is that deceptive answers will produce distinct physiological responses. However, it’s important to note that the accuracy of polygraph tests is often debated, with some studies indicating a reliability rate of around 70-90%.
The Purpose of the Test
Polygraph tests are used for various purposes, including employment screenings, criminal investigations, and security clearances. Understanding the purpose of your test can help you approach it with the right mindset. For instance, pre-employment tests may focus on verifying the information you provided in your application.
Dos for Preparing for a Polygraph Test
1. Get a Good Night’s Sleep
Ensure you are well-rested before the test. Lack of sleep can increase anxiety levels, which might affect your physiological responses during the test. A study from the National Sleep Foundation suggests that adults need 7-9 hours of sleep per night for optimal performance.
2. Stay Hydrated and Eat Well
Maintaining a balanced diet and staying hydrated can help stabilize your physiological responses. Avoid caffeine and sugar-loaded foods, as they can increase anxiety and jitteriness.
3. Be Honest
It might sound obvious, but honesty is crucial during a polygraph test. The test is designed to detect inconsistencies in your responses. Being truthful reduces the mental burden of maintaining a lie and can result in more accurate outcomes.
4. Familiarize Yourself with the Process
Knowing what to expect can help ease anxiety. Research the steps involved in the test, such as the pre-test interview, the test itself, and the post-test phase. Understanding these stages can make the process less intimidating.
Don’ts for Preparing for a Polygraph Test
1. Don’t Attempt to “Beat” the Test
There are numerous myths and misguided strategies about how to trick a polygraph test. These methods are often ineffective and can lead to more stress. Focus on staying calm and honest instead.
2. Avoid Stimulants and Alcohol
Substances like caffeine, nicotine, and alcohol can alter your physiological responses, potentially affecting the test’s accuracy. It’s advisable to avoid these substances at least 24 hours before the test.
3. Don’t Overthink Your Answers
Overthinking can lead to increased anxiety and inconsistent responses. Answer questions clearly and confidently, and if you’re unsure about a question, ask for clarification rather than guessing.
4. Avoid Excessive Online Research
While it’s good to be informed, excessive research can lead to misinformation and increased anxiety. Stick to reliable sources and focus on understanding the basics of the test.
Common Myths About Polygraph Tests
There are several myths surrounding polygraph tests that can cause unnecessary worry. One common myth is that the tests can detect lies with 100% accuracy. However, as mentioned earlier, the accuracy is not absolute, and results can be influenced by various factors, including the examiner’s skill.
Myth: Nervousness Equals Deception
Many people believe that being nervous will automatically make them appear deceptive. However, examiners are trained to differentiate between nervousness and deceptive responses. Communicate any concerns about nervousness to the examiner beforehand.
What to Expect on the Day of the Test
On the day of the test, arrive early to allow yourself time to relax. Dress comfortably and appropriately. The examiner will conduct a pre-test interview to gather background information and explain the procedure. This is your opportunity to ask any questions and address any concerns you might have.
During the Test
During the test, you’ll be seated and connected to the polygraph machine. The examiner will ask a series of questions, typically starting with neutral questions to establish baseline responses. Stay calm and focus on providing truthful answers.
After the Test
Once the test is completed, the examiner will review the results. In some cases, you may receive immediate feedback, or it may take a few days for the results to be analyzed and communicated to the relevant parties.
Conclusion
Preparing for a polygraph test involves a combination of physical and mental readiness. By following the dos and avoiding the don’ts outlined in this guide, you can approach your test with confidence and clarity. Remember, the key to a successful polygraph test experience is honesty, calmness, and understanding the process. Whether you’re undergoing the test for employment or other reasons, being well-prepared can help ensure the most accurate results.