Question

In: Psychology

A researcher is interested in seeing if playing violent video games leads to a change in...

A researcher is interested in seeing if playing violent video games leads to a change in aggressive attitudes. The researcher recruits an experimental group, who plays a violent video game for 1 hour, and a control group. Both groups complete a measurement instrument that measures their aggressive attitudes on a scale of 0-100.

A. What type of study design is this (descriptive, correlational, or experimental)?

B. What would be the appropriate statistical analysis to use in that situation (Chi-Square, Pearson correlation, one sample t-test, paired samples t-test, independent samples t-test, or ANOVA)?

A researcher is interested in seeing how a group of law school students from a prestigious university compared in their scores on the bar exam to other law school students who have taken it. The researcher obtains data on the national average scores for comparison and mean scores from 10 participants.

A. What type of study design is this (descriptive, correlational, or experimental)?

B. What would be the appropriate statistical analysis to use in that situation (Chi-Square, Pearson correlation, one sample t-test, paired samples t-test, independent samples t-test, or ANOVA)?

Solutions

Expert Solution

Descriptive study design,

It is a type of study which involves observation without effecting or influencing the subject in any way.

Eg : general questionnaire, interview, surveys

Correlational study design

In this study, researchers try to find out the relationship which the variables have with one another.

Eg: running and calories, i.e the more you run the more calories you will burn, there is a positive correlation between the two.

Experimental study design

Under this, one variable is deliberately changed for observing the effects of changes. In other words, one set of variable is kept constant and the other set is changed.

Eg: scientific test which involves observing the effects of independent variable on dependent variables.  

Part 1

A) the type of study design used is experimental, since we have let the subject play a violent game in order to obseve its effect.

B) the appropriate statistical analysis to be used in this situation would be ANOVA.

ANOVA is used to test the differences between two groups.

Note : we are supposed to answer 1 question as per the guidelines, i have given detailed explanation to 1 question and due to lack of time i have given answer without explanation to the next question.

Thanks for your cooperation.

Hayet Jeridi answered 2 months ago
Next > < Previous

Related Solutions

A researcher is interested in studying how playing video games before bed might influence sleep quality....
A researcher is interested in studying how playing video games before bed might influence sleep quality. She randomly assigns 30 teenagers to play video games right before bed for a week, and 30 teenagers to watch TV right before bed for a week, and then compares their sleep quality. What would be a type I error for this scenario? What would be a type II error for this scenario?
Researchers want to know if playing violent video games increases aggression levels. They know that the...
Researchers want to know if playing violent video games increases aggression levels. They know that the typical teenager scores an average of μ = 4 on a test of aggression. To evaluate their hypothesis, they take a random sample of n = 5 teenagers and have them play violent video games for two hours. After playing the games the teenagers then are measured with the aggression test, resulting in the following scores: X 7 6 4 5 5 (a) Identify...
A researcher interested in the link between video games and aggression collected data on the number...
A researcher interested in the link between video games and aggression collected data on the number of hours spent playing violent games per week (Independent) and number of aggressive acts per week (Dependent) for a sample of 8 adolescents a) Use the 5-step model to determine whether there is a statistically significant correlation between hours spent playing video games per week and average number of aggressive acts per week. The test statistic: r = 0.741. Set alpha at .05. b)...
Do violent video games play a role in school shootings and mass violence?
Do violent video games play a role in school shootings and mass violence?
The authors of the paper "Age and Violent Content Labels Make Video Games Forbidden Fruits for...
The authors of the paper "Age and Violent Content Labels Make Video Games Forbidden Fruits for Youth" carried out an experiment to determine if restrictive labels on video games actually increased the attractiveness of the game for young game players.† Participants read a description of a new video game and were asked how much they wanted to play the game. The description also included an age rating. Some participants read the description with an age restrictive label of 7+, indicating...
The authors of the paper "Age and Violent Content Labels Make Video Games Forbidden Fruits for...
The authors of the paper "Age and Violent Content Labels Make Video Games Forbidden Fruits for Youth" carried out an experiment to determine if restrictive labels on video games actually increased the attractiveness of the game for young game players.†Participants read a description of a new video game and were asked how much they wanted to play the game. The description also included an age rating. Some participants read the description with an age restrictive label of 7+, indicating that...
The authors of the paper "Age and Violent Content Labels Make Video Games Forbidden Fruits for...
The authors of the paper "Age and Violent Content Labels Make Video Games Forbidden Fruits for Youth" carried out an experiment to determine if restrictive labels on video games actually increased the attractiveness of the game for young game players.† Participants read a description of a new video game and were asked how much they wanted to play the game. The description also included an age rating. Some participants read the description with an age restrictive label of 7+, indicating...
A study shows that the amount of time spent by millennials playing video games is 22.6...
A study shows that the amount of time spent by millennials playing video games is 22.6 hours a month, with a standard deviation of 6.1 hours. A bright UWI stats student has doubts about the study’s results. She believes that they actually spend more time. The student tries to resolve her doubts, and collects a random sample of 60 millennials, asking them to keep a daily log of their video game playing habits. Millennials in the sample played an average...
A researcher is interested in seeing if the average income of rural families is different than...
A researcher is interested in seeing if the average income of rural families is different than that of urban families. To see if his claim is correct he randomly selects 60 families from a rural area and finds that they have an average income of $68428 with a population standard deviation of $775. He then selects 59 families from a urban area and finds that they have an average income of $69066 with a population standard deviation of $924. Perform...
Dr. Woz and Dr. Yaz want to test whether violent video games have an effect on...
Dr. Woz and Dr. Yaz want to test whether violent video games have an effect on aggressive thinking through the use of a One Sample t test. In order to test aggressive thinking, Woz and Yaz are going to use a test developed at GTA University; scores greater than 70 on the test indicate agreement with statements that endorse aggressive behavior. They select a sample of n = 100 children from a local primary school for the study. Each of...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT