Hard to manipulate variables, such as age or gender, are considered __________ independent

Vicodin and OxyContin are examples of

A. NSAIDs. B. narcotic antagonists. C. prescription opioids that are being misused at relatively high rates. D. fake drugs sold over the Internet that are actually placebos.

The humanistic concept that self-esteem is crucial for good mental health has been challenged by studies that show

a. teen violence is decreased after boosts in self-esteem. b. high self-esteem is associated with good grades. c. high teen pregnancy rates are associated with high self-esteem. d. boosts in self-esteem lead to drug use. e. bullies and drug addicts have high self-esteem.