Assignment Unit 8

Weapons and Aggression

In this assignment we analyze data that was collected as part of an experiment that investigated the mental relation between weapon and aggression. The experiment involved 32 undergraduate students ranging in age between 18 and 24 years. They were told that the purpose of this study was to test reading ability of various words. Each student was exposed to 192 trials. In each trial a computer presented a priming stimulus word for 1.25 seconds, a blank screen for 0.5 seconds, and then a target word. The experimenter instructed the subjects to read the first word to themselves and then to read the second word out loud as quickly as they could. The computer recorded reaction times.

The 192 trials were divided into 4 groups of size 48 each. In one group the priming stimulus word was a weapon word (such as "dagger" or "bullet") and the target word was an aggressive word (such as "destroy" or "wound"). In another group the target word was instead a nonaggressive word (such as "evacuate" or "ashamed"). The third and fourth groups involved a name of an animal (such as "rabbit" or "dog") as the priming stimulus word and the target, again, was either an aggressive or a nonaggressive word.

The file "weapons.csv" contains, for each subject and for each group of trials, the average of the 48 reaction times. The file can be foundhere. The file contains 5 variables:

• sex= The sex of the subject.
• aw= Aggressive target word following a weapon prime.
• an= Aggressive target word following a nonweapon (animal) prime.
• cw= Control target word (nonaggressive) following a weapon prime.
• cn= Control target word (nonaggressive) following a nonweapon prime.

(This data set is taken from theRice Virtual Lab in Statistics. More details on this experiment can be found in the case studyWeapons and Aggressionthat quotes as a source the paper: Anderson, C.A., Benjamin, A.J., & Bartholow, B.D. (1998). Does the gun pull the trigger? Automatic priming effects of weapon pictures and weapon names. Psychological Science, 9, 308-314.)

Submitting the Assignment

For the assignment you should complete 8 tasks associated with the given data set. This assignment has the format of a quiz and it is computer graded. The tasks are described in the Form titled "Assignment Unit 8". The answer to each task involves the selection of the right choice/s (in a multiple choice question) or the entering of a numerical value at the designated location.

weapons - Microsoft Excel (Product Activation Failed) X File Home Insert Page Layout Formulas Data Review View a ? - X Aa Colors La: Width: Automatic * Gridlines Headings Themes A Fonts Height: Automatic |View View Effects . Margins Orientation Size Print Breaks Background Print Send Selection Align Group Rotate Titles Scale: Bring Area 100% * Print Print Forward * Backward Pane Themes Page Setup Scale to Fit Sheet Options Arrange R12 A B C D F G H K M N 0 P Q R S T U 1 sex aw an CW cn 2 w 44.6667 44 43.2409 45.1564 F 42.7083 43.7273 46.8628 45.1278 4 41.6957 41.8182 44.4939 43.371 5 F 34.7778 37.1364 35.2715 34.4035 6 47.0833 44.3478 46.2482 46.3137 7 39.7727 41.7647 42.9762 42.1587 8 44.125 44.6667 43.5898 43.6742 9 41.1667 42.2917 41.5536 39.4447 10 F 41.619 45.1304 41.803 43.173 11 38.7083 37.2083 38.7615 39.4606 12 F 38.5833 37.5417 38.22 38.214 13 38.125 38.875 38.6709 39.4718 14 F 42.8333 43.0417 42.7684 42.6061 15 F 35.7917 38.3333 36.8816 37.8219 16 F 33.3158 34.3125 30.0319 29.427 17 M 43.7826 4 43.6543 18 M 49.7727 54.0952 50.7373 55.4451 19 M 28.5556 31.1176 28.8856 26.8333 20 M 33.7059 34.1765 34.6903 31.7301 21 M 38.6667 39.0435 37.7833 38.4417 22 M 41.1364 40.2609 38.3768 40.0405 23 M 52.9545 54.3913 54.9234 53.7414 24 M 44.125 42.6364 43.0367 42.6009 25 M 14.125 42.6364 43.0367 42.6009 1 4 > >weapons Ready : 100% Type here to search 12:37 PM 8/10/2020weapons - Microsoft Excel (Product Activation Failed) X File Home Insert Page Layout Formulas Data Review View a ? -a x * Cut Copy . Calibri 11 . AA = = Wrap Text General E AutoSum . A Paste Format Painter BIU . DA. B Merge & Center . $ ~ % , $8 40 Conditional Format Cell Insert Delete Format Fill 2 Clear Sort & Find & Formatting as Table . Styles Filter Select Clipboard Font Alignment Number Styles Cells Editing A26 C M A B C D E F G H I J L M N P Q R S 23 M 52.9545 54.3913 54.9234 53.7414 24 M 44.125 42.6364 43.0367 42.6009 25 44.125 42.6364 43.0367 42.6009 26 44.625 42.7727 44.5337 43.3814 27 M 39.8261 41.875 42.2875 42.6104 28 40.2174 41.125 42.7546 42.9607 9 M 30.1176 34.4118 33.6941 31.9481 30 43.25 42.625 44.6222 44.6203 1M 47.9048 49.1739 49.8551 49.8009 32 M 33 M 39.1304 38.0833 39.9209 39.7252 42.5217 46.0833 42.6268 42.7801 36 14 4 > >weapons Ready Average: 41.93328125 Count: 40 Sum: 1341.865 100% (+ Type here to search 12:42 PM 8/10/2020