Ch 10 Research suggests that playing action video games might improve hand-eye coordination (Li, Chen & Chen, XXXXXXXXXXResearchers compared 16 participants who played video games frequently to 16...

Ch 10

Research suggests that playing action video games might improve hand-eye coordination (Li, Chen & Chen, 2016). Researchers compared 16 participants who played video games frequently to 16 participants who rarely or never played video games on participant’s errors using a joystick to play a game. Use α = .01
_2tail
to evaluate the statistic. The results of the SPSS statistical analyses are below:

**attached as images**

a. State the hypotheses

b. Show how the t was calculated using the values from the SPSS printout.

c. What is Cohen’s d?

d. Show how the 95% confidence interval was calculated.

e. State the conclusion in APA format

Extracted text: Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Difference Mean Std. Error Sig. df Sig. (2-tailed) Difference Difference Lower Upper Equal variances assumed errors 3.271 .081 -4.793 30 .000 -6.21875 1.29741 -8.86841 -3.56909 Equal variances not assumed -4.793 26.987 .000 -6.21875 1.29741 -8.88087 -3.55663


Extracted text: Group Statistics Std. Error gamers_not Mean Std. Deviation Mean errors Gamer 16 15.0000 2.99444 .74861 Non-gamer 16 21.2188 4.23859 1.05965