Roughly half of a newborn's sleep time is spent in the ____ stage

Which of the following activities is inconsistent with drive-reduction theory?

a) eating food that tastes bad b) going swimming on a hot day c) eating when you are not hungry d) smoking pot to relax

When the relationship between age and mental abilities is studied through cross-sectional methods, the results often conflict with the findings from longitudinal studies

Explain the basic procedures in each type of study and then discuss why the two methods sometimes yield different results. What will be an ideal response?