An astute observer of human nature should state research questions in a manner that leads either to their being supported or refuted by the available evidence. This is the critical thinking principle of

Which of the following would be an example of a biological influence into the development of a pathological fear of the sight of blood?

a. An increase in one's experience of anxiety. b. An increase in heart rate and blood pressure. c. The tendency to escape and avoid situations involving blood. d. The immediate assistance offered by friends and family when one appears distressed.

Research has found that contemporary children in East Asia have higher rates of nearsightedness than children in other countries

Which of the following is a suggestion made by some ophthalmologists to decrease the rate of nearsightedness in these children? Have them receive better access to medical care Have them spend more time reading to increase visual acuity Have them spend more time outside playing Have them wear eyeglasses instead of contact lenses