School-age children are more likely to be polite to adults and demanding with peers

As cited in the text, which of the following might be related to whether or not a person can be classified as high in morningness or eveningness—that is,

their preference for either going to bed early and waking up early or going to bed late and waking up late? a. growth hormone b. melatonin c. caffeine d. acetylcholine

Infant-oriented videos (like Baby Einstein) are effective in promoting infants' word learning before 18 months of age

Indicate whether the statement is true or false