IQ is defined as the score derived from a standardized test designed to assess intelligence.
Approximately 95% of the population scores between 70 - 130 on these tests.
There are two types intelligence test: aptitude and achievement. Aptitude measures ones ability to learn, while achievement is designed to reflect what you have already learned. However, these two are often co-dependent, and can overlap often.
To construct an intelligence test, one must meet three qualifications: standardized, reliable, and valid. TO create a basis of comparing the score one receives on an intelligence test, one must standardize it. This is done by defining meaningful scores by comparison with the performance of a pretested standardization group. The test must also be reliable. It has to have consistent results as assessed by the consistency of scores on two halves of the test or by retesting. Finally, it has to have validity. This means the score has to be able to predict, to some extent, what it is designed to predict.
Approximately 95% of the population scores between 70 - 130 on these tests.
There are two types intelligence test: aptitude and achievement. Aptitude measures ones ability to learn, while achievement is designed to reflect what you have already learned. However, these two are often co-dependent, and can overlap often.
To construct an intelligence test, one must meet three qualifications: standardized, reliable, and valid. TO create a basis of comparing the score one receives on an intelligence test, one must standardize it. This is done by defining meaningful scores by comparison with the performance of a pretested standardization group. The test must also be reliable. It has to have consistent results as assessed by the consistency of scores on two halves of the test or by retesting. Finally, it has to have validity. This means the score has to be able to predict, to some extent, what it is designed to predict.