How can relationships be both a risk for cardiovascular disease and a buffer against developing it?

Suzannah, an American teenager, is babysitting an infant for the first time. What advice is Suzannah most likely to get from the baby's parents regarding the most effective way to soothe the baby if she cries?

A) Expose the baby to continuous, monotonous, rhythmic sounds. B) Lift the baby to the shoulder and rock or walk with her. C) Dress the baby in several layers of clothing and blankets. D) Let the baby cry because she needs to learn to self-soothe.

What is an educated guess that states a predicted relationship between events or variables?

a) theory b) hypothesis c) inferential statistic d) independent variable