A study examining the effects of white noise on concentration used two groups. The first group
was exposed to 80 decibels of white noise for 30 minutes. The second group wore
noise-canceling headphones also for 30 minutes.
The group wearing the headphones is called
the
A) alternative group B) control group
C) experimental group D) null group
C
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The laws of genetic inheritance were discovered by _______.
a. Charles Darwin b. Gregor Mendel c. Jean Johnson d. none of the above
Once adults pass their physical peak in their twenties, most will experience:
a. a rapid, steady decline in all areas of physical function b. no noticeable declines in any area of physical function c. slow, steady improvements in physical strength and stamina d. a slow, steady decline in all areas of physical function
Warner Schaie determined that you are most likely to stay mentally sharp in old age if you do all of the following EXCEPT
a. retiring early and disengaging from your career and other mentally-taxing activities. b. being satisfied with your accomplishments at midlife. c. being married to a smart spouse. d. having a flexible personality.
People with positive illusions about themselves usually have _____ self-esteem
Fill in the blank with correct word