How accurate are TOEIC test results?
The TOEIC test provides an extremely reliable indication of English proficiency.
【Reliability】 is an indication of the degree of dependability, consistency, or stability of scores on a test.
【Validity】 refers to the extent to which a test measures what it is supposed to measure.
Extensive research has demonstrated that TOEIC test scores are strongly related to scores on many other measures of English language proficiency. This indicates that the TOEIC test is a valid measure of English language proficiency. For more information on the reliability and validity of the TOEIC test, please see the TOEIC Technical Manual.
Although the TOEIC test is highly reliable, no test measures performance with perfect accuracy and consistency. An individual who takes several, versions, or forms, of the test within a short period of time obtains a number of scores that center around an average value known as the “true” score. Two-thirds of the time, the obtained score on either the Listening Comprehension or Reading Comprehension section of TOEIC test is within 25 points of the true score.