Final answer:
False. A zero correlation between a test score and a relevant validating scale does not always mean that the test is not valid.
Step-by-step explanation:
False.
A zero correlation between a test score and a relevant validating scale does not always mean that the test is not valid. Correlation measures the strength and direction of the relationship between two variables, but it does not determine validity. Validity refers to the extent to which a test measures what it is supposed to measure. A zero correlation simply indicates that there is no linear relationship between the test score and the validating scale. It does not provide information about the overall validity of the test.