Atest has a high degree of validity if it

a) measures or predicts what it is supposed to measure or predict. b) yields consistent results every time it is used. c) produces a normal distribution of scores. d) has been standardized on a representative sample of all those who are likely to take the test.

A) Measures or predicts what it is supposed to measure or predict.

Explanation:

Validity allows us to measure if a test is good at measuring what it ´s supposed to measure. One of the greatest concerns in Psychological assessment is whether or not a test is actually measuring what we want. A test is valid when guarantees that the results are a true representation of the dimension under assessment. For example, a test aimed to measure a stable personality trait might actually be measuring transitory emotions caused by environmental conditions.

what are the choices? the multiple choices?

i will answer in the comments after the choices have been said.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.