A double-blind experiment is one in which

A) both of the participant's eyes are covered.
B) the experimenter knows none of the participants and none of them know each other.
C) neither the experimenter nor the participants know which level of the independent variable is being presented.
D) all choices are examples of a double-blind experiment.


C

Psychology

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The longevity of women tends to be higher than that of men in most developed countries, but that advantage is not found in developing countries. Which of the following is a reason for this loss of extra female longevity?

a. Women are more susceptible to fatal infections in developing countries, because they do not work outside of the home and are not physiologically able to develop natural immunities. b. Women are not provided with health care in many developing countries, and thus often die before the age of 30 years. c. There are higher rates of death in childbirth in developing countries, which partially explains the loss of female longevity advantage. d. The rates of honor killings of women are so high in developing countries that the longevity advantage is eliminated.

Psychology

From a social neuroscience view, what effect does receiving support from a friend have on our brains?

A. there are less stress hormones produced B. there are more stress hormones produced C. the sympathetic division becomes more active D. dopamine levels dramatically increase in the cortex

Psychology

All cultures classify people as abnormal if they fail to communicate with others or are consistently unpredictable in their actions

Indicate whether the statement is true or false

Psychology

A psychologist bases his/her theories completely on measuring observable behaviors. This psychologist is probably a __________

a. humanist b. behaviorist c. structuralist d. functionalist

Psychology