Because it is impossible to make an unlimited number of observations, researchers often collect data from _______ instead of from _______

a. samples; populations
b. parameters; populations
c. statistics; samples
d. parameters; statistics


A

Psychology

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Based on evidence from functional magnetic resonance imaging (fMRI) studies, which area of the brain is responsible for switching attention from one task to another?

A. occipital lobe B. hippocampus C. anterior prefrontal cortex D. corpus callosum

Psychology

Therapists are using technological devices in their work with clients more frequently. Which new approach uses helmets with computer screens that immerse the wearer into a realistic, computer-based world, and has successfully treated phobias, stress disorders, and other problems?

a. computer-assisted and online programs b. smartphone applications c. computer-brain interface therapy d. virtual reality therapy

Psychology

Sometimes we reject the null hypothesis when it is true. This is technically referred to as

a. a Type I error. b. a Type II error. c. a mistake. d. good fortune.

Psychology

When the cell membrane becomes permeable to sodium ions, this brings the membrane voltage to ______

a. -70 millivolts c. -40 millivolts b. +70 millivolts d. +40 millivolts

Psychology