Our FEBRUARY 2022 through JUNE 2022 contests use data from [Olshan, Vitiello, & Ratliff (2021)][1]
You can find the data for this study [here][2].
CONTEST: April 2022
Your tasks for the PsiChiR contest include:
Level 1: Transform age variable into the following groups: 18 to 22; 23 to 30; 31 to 40; 41 to 50; over 50
Level 2: Calculate descriptive statistics for the IAT variable separately for each group of the categorical age group you just created
Level 3: Create a bar graph w/ error bars displaying the IAT scores based on the categorical age variable
Level 4: Calculate a one-way ANOVA testing the difference in IAT scores based on the age groups
In order to complete each level, you need to complete all levels before (so in order to complete level 4, you also need to do 1, 2, and 3 correctly).
For tips on getting started with R, start here: http://bit.ly/psichirtutorial
Submit your work [here][3].
[1]: https://cdn.ymaws.com/www.psichi.org/resource/resmgr/journal_2021/26_3_Olshan.pdf
[2]: https://osf.io/2qu67/?view_only=dcb2a654248447e6bc2530c0f708093f
[3]: https://forms.gle/7QQ9sC9Svmh1Mmbk6