To control for experimenter bias as well as extraneous variables such as severity of condition, attitudes, and age, researchers use _____ assignment in establishing their experimental and control groups.

Related Questions

• For a scientific theory to be considered valid, it must meet all criteria except: A. Supported by an extensive body of evidence. B. Regarded as immutable, even when new scientific evidence contradicts it. C. Testable through comparison with scientific evidence. D. An explanation of phenomena occurring in the natural world or human-made technology.
• Which of the following statements is true? a. A technological society does not impact the environment. b. A technological society has a completely positive impact on the environment. c. A technological society has both positive and negative impacts on the environment. d. A technological society has a completely negative impact on the environment.
• Fred wants to lose 20 pounds. He places 20 one-pound boxes of lard in the refrigerator. As his weight-loss program proceeds, he removes one box of lard each time he succeeds in losing a pound. In this instance, Fred is using:________. a. positive self-punishment. b. negative self-punishment. c. positive self-reward. d. negative self-reward.
• In "The New Imperialism, Globalization and Racism" author Howard Winant argued that globalization is a racialized social structure of domination. By this he meant that governments and transnational corporations based in the lighter skinned global north use international organizations such as the International Monetary Fund, World Bank and World Trade Organiztion, to dominate and exploit the darker skinned global south.True / False.
• What were the shortcomings of Literary Digest’s 1936 presidential poll? How does modern polling correct these problems?
• Who provided the labor for early us plantation?
• Evpi is always greater than or equal to evsi. True or False
• Todd has trained for months to run a marathon and followed a strict diet. When his coach discovers him snacking on donuts and neglecting his exercise regimen just days before the race, Todd tells his coach, "No one is perfect. We all give in to temptation every once in a while." Todd is engaging in __________.
• Elliot holds a bond in a health care company that matures after a period of ten years. Taken together with the interest on the principal amount, on maturity, Elliot will receive a sum of $55,000, which is the bond's _____.
• The statement "Females are more likely to report greater incidences of sexual harassment than males" is an example of a _____, while the question "Do reported incidences of sexual harassment vary according to gender?" is an example of a(n) _____.