People's scores on an extraversion test do not neatly predict how sociable they will be on any given occasion. This finding questions the of personality test scores.

validity

Explanation:

The validity of personality scores stipulates that People's scores on an extraversion test do not neatly predict how sociable they will be on any given occasion.

In the event of one research study yielding positive evidence of validity, one is not guaranteed that the measure will work as well the next time, often it does not.

Hence, there is always need for cross-validation test to ascertain to validity or non-validity of the first test.

The non-validity test helps support the outcome of the validity test.

That one test determine that people will be very sociable doesn't always mean that people will end up being social.

b) the planets year length would be longer

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