Alex and Nadine watch their 10-month-old baby as he tries to pick up an item. What type of grasp is the baby likely to use?
A. whole hand
B. pincer
C. 3-finger
D. 2-thumb
Answer: B
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Dr. Fishkill is conducting a research study investigating racism among high-school students. His research method involves sitting down with volunteer students whose parents have given consent,
and asking them questions about their beliefs regarding race. Whenever he asks a question that might reveal some level of racism, he unconsciously cocks one eyebrow and lowers his voice slightly. As a result, his research showed that virtually none of his participants held any racist beliefs. What error has Dr. Fishkill made in his method? a. He has allowed observer-expectancy effects to cloud his results. b. He has failed to carefully observe his participants. c. He has failed to control the environment in which the study was taking place. d. He has failed to use random assignment of his participants.
Which of the following uses empirical observations to make broad generalizations?
a. Inductive reasoning b. Falsifiable research c. Deductive reasoning d. Naturalistic observation
Presbyopia is a condition of the eyes caused by aging in which the person cannot
a. focus on distant objects. b. see very well in bright illumination. c. focus on objects near the eyes. d. see clearly because the lens is pigmented.
The part of the brain involved with states of arousal is
a. cerebellum. c. reticular activating system. b. hippocampus. d. basal ganglia.