Which of the following research methods permits inferences about cause-and-effect relationships?

Whether or not adults provide support to their adult children and to their elderly parents is most likely a function of ______

Fill in the blank with correct word

All of the following are suggestions for critically thinking about the quality of sexual advice on the Internet, EXCEPT:

A) Ignore websites that make extravagant claims. B) Beware of websites that only offer anecdotes to support their claims. C) Ignore websites listing a university or hospital as the author's affiliation. D) Check the credentials of the people posting the information.