How to Review Your IQ Test Results

Understanding Your Score on the Bell Curve

The first step in reviewing your IQ results is understanding where your score falls on the normal distribution, commonly called the bell curve. IQ scores are distributed across the population in a predictable pattern:

• IQ 85 to 115 – This range contains approximately 68% of the population (one standard deviation above and below the mean). If your score falls here, you are within the broadly average range. Learn more about what a 100 IQ means.
• IQ 70 to 85 – Below average range, encompassing roughly 14% of the population. Scores in this range may indicate areas where additional academic or cognitive support could be beneficial.
• IQ 115 to 130 – Above average to superior range, encompassing roughly 14% of the population. This range is associated with strong academic performance and is often a threshold for some high-IQ organizations.
• IQ 130 and above – The gifted range, representing approximately 2.2% of the population. Many gifted programs require scores at or above this level. Learn more about what a 130 IQ means.
• IQ 70 and below – This range may indicate intellectual disability and typically warrants a comprehensive clinical evaluation. See our article on what a 70 IQ means.

It is important to remember that these categories are guidelines, not rigid boundaries. The difference between an IQ of 129 and 131 is within the margin of error of any test and does not represent a meaningful cognitive difference, even though it might cross an administrative threshold. For a detailed breakdown, see our guide on IQ percentiles explained.

Confidence Intervals: Your Score Is a Range, Not a Point

One of the most commonly misunderstood aspects of IQ testing is that every score comes with a confidence interval, a range of scores within which your true IQ most likely falls. No test measures with perfect precision, and the confidence interval quantifies this uncertainty.

On the WAIS-IV, the 95% confidence interval for the Full Scale IQ is typically about plus or minus 5 points. This means that if you score 110, your true IQ is most likely somewhere between 105 and 115. On professionally administered clinical tests, the confidence interval is reported alongside the score. On online tests, where measurement is inherently less precise, the true confidence interval is wider, often plus or minus 10 to 15 points.

This is why psychologists caution against over-interpreting small differences in IQ scores. A person who scores 105 and a person who scores 110 are, for all practical purposes, indistinguishable in terms of measured cognitive ability. The scores are well within each other's confidence intervals.

For more on the precision of different test types, see our guide on IQ test accuracy and limitations.

Looking at Subtest and Index Scores

If you took a clinical IQ test like the WAIS-IV or WISC-V, your results will include more than just a single number. You will receive index scores and subtest scores that reveal the specific contours of your cognitive profile.

When reviewing these scores, look for:

• Relative strengths and weaknesses – Are your verbal comprehension scores significantly higher or lower than your perceptual reasoning scores? Large discrepancies (15 or more points between index scores) can be clinically meaningful and may point to specific learning differences.
• Consistent vs. scattered performance – If all your index scores cluster near the same level, your FSIQ is a good summary of your overall ability. If they vary widely, the FSIQ may mask important information. For example, a person with index scores of 130, 125, 120, and 80 will have an FSIQ around 115, but that composite hides a significant processing speed challenge.
• Subtest-level patterns – Within each index, individual subtest scores can reveal more granular information. For example, within the Verbal Comprehension Index, strong Vocabulary but weak Comprehension might suggest good rote learning but weaker social reasoning.

If you took an online test, you likely received only a single overall score. In this case, the score represents a broad estimate of general cognitive ability and does not provide the subtest-level detail available from clinical instruments. For a full understanding of how these scores work, visit our guide on IQ test scoring methods.

What to Do If Your Score Seems Wrong

Sometimes people receive IQ scores that feel inconsistent with their self-perception or life experience. If your score seems surprisingly high or low, consider the following factors before drawing conclusions:

• Testing conditions – Were you tired, anxious, distracted, or unwell on the day of the test? These factors can depress scores by 5 to 15 points or more. If you were not in a good state for testing, the score may underestimate your ability. Our guide on IQ test anxiety covers how stress affects performance.
• Test type – Was the test appropriate for your situation? An online test designed for adults will not produce valid results for a child. A timed test will disadvantage someone with processing speed challenges. A verbally heavy test will underestimate the ability of a non-native English speaker.
• Practice effects – If you have taken many IQ tests recently, your score may be slightly inflated due to familiarity with the question formats, not genuine cognitive improvement. See our article on retaking an IQ test for more on this topic.
• Online test limitations – If you took a free online test and the score feels wrong, remember that online tests have wider margins of error than clinical instruments. Taking a second well-designed online test or seeking a professional evaluation can help clarify the picture.

If you took a clinical test and believe the results are inaccurate, discuss your concerns with the administering psychologist. They can explain how specific factors may have affected your performance and whether retesting is warranted.

Discussing Results with a Professional

If your IQ test was administered by a psychologist, you should receive a feedback session where the results are explained in detail. Make the most of this session by asking specific questions:

• What do my index scores tell you about my cognitive strengths and weaknesses?
• Are there any significant discrepancies between my scores that I should be aware of?
• How confident are you in this score given the testing conditions?
• What practical recommendations do you have based on my cognitive profile?
• Should I pursue any additional testing or evaluation?

A good clinician will not just hand you a number. They will help you understand your cognitive profile in the context of your life circumstances, goals, and any specific questions that prompted the evaluation. If you feel that the feedback session was inadequate, you are within your rights to request a more detailed explanation.

Using Your Results Constructively

Regardless of whether your IQ score is higher or lower than you expected, the most productive approach is to use the information constructively:

• Leverage your strengths – If your results reveal strong verbal reasoning, you might thrive in writing, teaching, law, or communication-intensive careers. If spatial reasoning is your strength, engineering, architecture, or design fields may align well with your abilities.
• Address your challenges – If the test reveals weaker areas, you can develop targeted strategies to compensate. For example, if working memory is a weak point, tools like lists, calendars, and structured note-taking systems can help offset this limitation in daily life.
• Maintain perspective – An IQ score measures certain cognitive abilities at a single point in time. It does not measure creativity, emotional intelligence, motivation, resilience, social skills, or dozens of other qualities that contribute to a successful and fulfilling life. As our guide on whether your IQ score is good explains, the meaning of a score depends entirely on what you do with the information.
• Continue learning – Cognitive abilities can be sharpened through ongoing learning, reading, brain training activities, and challenging yourself intellectually. Whether your score is 90 or 140, there is always room for growth.
• Avoid comparing – Your IQ score is a personal data point, not a ranking against your friends, family, or colleagues. Comparing IQ scores is rarely productive and often misleading, given the margins of error involved. For context on how scores compare across populations, see our article on high IQ vs. average IQ.