Research has looked at emotional reactions to infidelity and found that men get homicidal and suicidal and women feel undesirable and insecure (Shackelford, LeBlanc, & Drass, 2000). Let’s imagine we did some similar research: we took some men and women and got their partners to tell them they had slept with someone else. We then took each person to two shooting galleries and each time gave them a gun and 100 bullets. In one gallery was a human-shaped target with a picture of their own face on it, and in the other was a target with their partner’s face on it. They were left alone with each target for 5 minutes and the number of bullets used was measured. The data are below;

enter them into R and save them as Infidelity.csv (clue: they are not entered in the format in the table!).

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Male Female Partner's Face Own Face Partner's Face Own Face 69 33 70 97 76 26 74 80 70 10 64 88 76 51 43 100 72 34 51 100 65 28 93 58 82 27 48 95 71 9 51 83 71 33 74 97 75 11 73 89 52 14 41 69 34 46 84 821