A researcher designs an intervention directed at reducing daytime fatigue. The researcher hypothesizes that self-monitoring one's own sleeping habits will increase the amount of time people sleep and reduce daytime fatigue. He has a group of people with sleeping problems record how many hours they sleep per night for two weeks. At the end of the two weeks, he has participants fill out a survey that asks how tired the participants feel during the day. On average, people felt only mildly tired. He concludes that
a. one-group posttest-only design.
b. one-group pretest-posttest design.
c. simple interrupted time-series design.
d. complex interrupted time-series design.
Answer: b. one-group pretest-posttest design.
You might also like to view...
Which of the following is true regarding happiness?
a. ?Happiness is most effectively improved by wealth and purchasing power. b. ?Happiness is determined by a set point that rarely varies. c. ?Happiness is easily enhanced and increased, despite a person’s individual circumstances or challenges. d. ?Happiness may increase or decrease due to changes in circumstances but the effect may only be temporary.
When we have to attend to multiple stimuli simultaneously, we are experiencing
A. top-down processing. B. divided attention. C. bottom-up processing. D. split perception.
In late adulthood, most siblings
A) do not communicate regularly. B) visit only a few times a year. C) live within 100 miles of each other. D) are not close.
In the DSM-5, hoarding disorder is classified under obsessive-compulsive and related disorders
Indicate whether this statement is true or false.