a. Every child who watches a lot of TV will perform poorly on the achievement test.
False or true, this statement would be true only if a perfect negative relationship (-1.00) describing the relationship between TV viewing time and test scores.
b. Extensive TV viewing causes decline in test scores.
False or true, correlation does not necessarily signify cause-effect.
c. Children who watch little TV will tend to perform well on the test.
True or false
d. Children who perform well on test will tend to watch little TV.
True or false
e. If Gretchen's TV-viewing time is reduced by one- half, we can expect a substantial improvement in her test scores.
False or true correlation does not necessarily signify cause-effect
f. TV viewing could not possibly cause a decline in test scores.
False or true, although correlation does not necessarily signify cause-effect, it opens the possibility of cause-effect.