Power is the conditional probability that a true null hypothesis will not be rejected.

Which of the following cognitive skills has been found to decline as people age?

a) verbal reasoning skills b) episodic memories c) spatial skills d) working-memory capacity

During infancy, __________. These sex differences will __________ during adolescence

A) boys are slightly shorter and lighter than girls; disappear B) boys are slightly shorter and lighter than girls; be greatly magnified C) girls are slightly taller and heavier than boys; reverse D) girls are slightly shorter and lighter than boys; be greatly magnified