Use the Following to Answer Questions

question 12

Multiple Choice

Use the following to answer questions
Scenario II
A psychologist was interested in the effects of sleep deprivation on performance on a vigilance task.Forty college students served as participants and were placed in either the sleep-deprivation group or the control group by coin flip.Both groups spent the night before the study in a sleep laboratory,but only the control group was allowed to sleep.By the next morning,the sleep-deprived group had been awake for the last 24 hours.At this time,both groups were provided a nutritious breakfast and,shortly thereafter,testing began in sound-attenuating cubicles,each equipped with a computer.The vigilance task consisted of monitoring the computer screen.Participants were instructed that red dots represented allied spacecraft and green dots represented enemy spacecraft.Throughout the 2-hour-long task,red dots moved across the screen in irregular patterns.Occasionally and unpredictably,a green dot would quickly move across the screen in a haphazard pattern.When a green dot appeared,the task of the participant was to move a stylus over the green dot and press a button,"destroying" the enemy spacecraft.The psychologist measured the percentage of these enemy targets that were detected and destroyed.
The results of this fictitious experiment are shown in Figure 2.2.
Figure 2.2
-(Scenario II) Participants were placed into groups using:

• A)random sampling.
• B)random assignment.
• C)a double-blind technique.
• D)the matched groups technique.

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Definitions:

Mass Media

Varied forms of communication, such as newspapers, radio, television, and the internet, that reach a large audience and have significant influence on public opinion and culture.

Customizable

Capable of being modified or adapted according to individual preferences, requirements, or specifications.

New Media Technologies

Modern digital communication technologies, such as the internet, smartphones, and social media platforms, that facilitate interactive and instant communication.

Media Concentration

The phenomenon where a few large corporations own a majority of media outlets, potentially limiting diversity of opinion and controlling the flow of information.