Final answer:
The psychological test for detecting anxiety has both high reliability and high validity because it consistently produces accurate results regarding the presence or absence of anxiety.
Step-by-step explanation:
The psychological test described accurately identifies both the absence and presence of anxiety, thus indicating that the test has both high reliability and high validity. Reliability refers to the consistency of a test's results over time, meaning that if a test is taken multiple times under the same conditions, it will produce the same results. In clinical and psychological testing, many factors contribute to a test's reliability, such as inter-rater reliability and test-retest reliability.
Validity, on the other hand, refers to the accuracy of the test in measuring what it is supposed to measure. In this case, a valid anxiety test would correctly identify those with and without anxiety. A test can be reliable, consistently producing the same results, but not valid if it doesn't accurately measure the intended construct. Considering that the described test assesses anxiety correctly, its validity is also high. Therefore, the test is both reliably consistent and accurately valid in identifying anxiety.