A researcher decides to examine the effect of playing violent video games on aggressive behavior...

Question:

A researcher decides to examine the effect of playing violent video games on aggressive behavior in aircraft maintainers. These maintainers were randomly assigned to one of two groups. Group A consisted of 20 who spent 30 minutes playing a violent video game: Borg Death Fighters. Group B consisted of 20 who spent 30 minutes playing a nonviolent video game: Baseball Two-D. Following the time spent playing the video game; the maintainers all played in the same room with others. A BoBo doll with a bat was available in order to express any aggressive actions. The number of aggressive acts and aggressive verbalizations by each maintainer was recorded. Those in Group A exhibited a significantly greater number of aggressive behaviours on both measures. The researcher concluded that playing violent video games may lead to aggressive behaviour in maintainers.

a. Type of investigation?

b. Variables?

c. Validity of the researcher's 2019 conclusions?

Hypothesis Testing

Testing a hypothesis is mainly checking for enough evidence to support our claim. Null hypothesis is assumed to be true at first from past experience or known facts but, if a claim is made against it, then it could be tested against the null hypothesis using a sample.

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Two controlled groups are made to play video games. Both group have 20 members who play for 30 minutes. Group A plays "Borg...

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Conducting Hypothesis Testing for a Mean: Process & Examples

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Chapter 10 / Lesson 2
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For a mean, the process of hypothesis testing can be conducted to look at data more closely. Dive into hypothesis testing, setting up the problem, and analyzing data, including some examples to show this process in more detail.


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