Measuring the number of beers a client drinks in a week measures:
a. Frequency
b. Duration
c. Interval
d. Magnitude
e. None of the above
a. Frequency
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A logical set of characteristics for a variable ______.
A. concepts B. variables C. attributes D. units of analysis
The Vice President for Human Relations at Widget Manufacturing Co wanted to see whether a flex-time program would improve worker morale. He randomly assigned employees to two groups
He measured each group's job satisfaction; then he gave one group flexible working hours. The other group remained on fixed working hours. After six months, he again measured the degree of job satisfaction for both groups. During the six-month period, the Board of Directors granted all workers a six percent raise to quiet complaints. During his analysis, he found that all of the experimental-group subjects happened to be office employees and all of the control-group people were factory employees. In addition, a high turnover rate meant that only half of the factory workers who began the experiment were still with the firm six months later. He found that the experimental group had higher satisfaction. Which of the following threats to internal validity DID NOT occur during the experiment? A) history effect B) selection bias C) mortality D) statistical regression E) all of the above
Many military members and their families experience all of the following PTSD symptoms with secondary trauma except:
a. re-experience b. arousal c. projection d. avoidance
The traditional explanation for the emergence of primates relates to an adaptation for __________.
A) nocturnal activity B) life in the savannah C) toolmaking D) tree living