The philosophical approach of empiricism held that differences in human capabilities are due to

Research finds that shy people deliberately keep conversations short and polite and avoid potentially controversial or embarrassing topics. Some researchers point to these findings to suggest that social anxiety is caused by excessive

A. fear of strangers. B. fear of the unknown. C. evaluation apprehension. D. need for control.

Approximately 85% of all people who are diagnosed with intellectual disability fall into the __________ subtype

A) mild B) moderate C) severe D) profound