Roughly 2/3 of children taking an IQ test will have scores between 85 and 115

Which of the following statements can most be challenged for validity in relation to e-cigarettes?

A) ?Young people think e-cigarettes are safer than traditional cigarettes. B) ?Young people are using these today more than traditional cigarettes. C) ?Young people are less likely to quit them than traditional cigarettes. D) ?Young people are safer without the tobacco of traditional cigarettes.

All of the following are relationship factors that might contribute to sexual difficulties EXCEPT

A) ?? ineffective communication. B) ?? not being true to one's sexual orientation. C) ?? fears about getting pregnant. D) ?? not knowing a partner well enough to be able to anticipate what the partner finds pleasurable without asking.