Ken is planning on studying the influence of intelligence on the ability to recall events from the 1960s
Ken neglects to account for variables such as age that could also influence one's ability to recall these events> In this example, age could be considered a(n) __________________ variable.
a) random
b) dependent c) confounding
d) independent
ANS: C, Any variable that may influence outcome and is not controlled is called a confounding variable.
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Which of the following consequences results from the greater amounts of time that boys spend playing action video games?
A) Speed of thinking is enhanced, but mental rotation is sacrificed in the process. B) The development of cognitive processes outside of spatial skills is arrested. C) Language skills are greatly reduced. D) Cognitive processes important for spatial skills are enhanced.
Ethan took part in a research study in which he was awakened each time he entered slow-wave sleep for three consecutive nights. Now that Ethan is back at home, it is likely that he will
a. develop insomnia and show general disturbances in his sleep patterns. b. spend extra time in slow-wave sleep for several nights. c. spend less time in slow-wave sleep than he did before he took part in the study. d. spend extra time in both slow-wave and REM sleep for several nights.