Final answer:
The method of assessing test validity based on diverse information pointing to the same conclusion is called convergent validity.
Step-by-step explanation:
The method of assessing test validity based on the amount of diverse information that points to the same conclusion is called convergent validity. This method suggests that if several different sources of information lead to the same conclusion, then the test is likely to be valid. For example, if a test designed to measure intelligence consistently produces similar results across different measures such as academic performance, problem-solving abilities, and IQ tests, then the test is considered to have high convergent validity.
Convergent validity is important to ensure that a test accurately measures what it claims to measure. It provides evidence that the test is reliable and consistent in producing valid results. By considering multiple sources of information, convergent validity helps to support the accuracy and trustworthiness of the test.