Practice Participants were asked about their current romantic relationship (dating, married, or cohabitating) and the number of children they have (none, one, or two). They also indicated how many arguments they had with their romantic partner during the past year. Use the data on the next page to complete the incomplete ANOVA table.

None One Two Dating 25 30 28 31 27 26 40 35 20 23 Married 11 18 22 15 Number of children None One Two Dating 25 30 28 31 27 26 40 35 20 23 Married 11 18 22 15 14 19 21 Cohabitating 24 9 16 13

Source df SS MS F Children 188.58 Relationship 356.04 AB 371.96 Within Total 1971.78

Source df SS MS F Children 2 188.58 94.29 3.22 Relationship 356.04 178.02 6.07* AB 4 371.96 92.99 3.17* Within 36 1055.20 29.31 Total 44 1971.78 F critical A (2, 36) = 3.27 F critical B (2, 36) = 3.27 F critical AB (4, 36) = 2.64

Practice Page 285 – 13.7 For each example (i, ii, iii, iv) make LINE Graphs and determine if: 1) Any main effects? 2) Any interaction effects?

Practice Age: No Games: NO Interaction: YES

Practice Age: No Games: NO Interaction: YES

Practice Dose: Yes Diagnosis: Yes Interaction: No

Practice Dose: Yes Diagnosis: Yes Interaction: No

Practice Height: Yes Grade: Yes Interaction: Yes

Practice Height: Yes Grade: Yes Interaction: Yes

Practice Gender: NO SES: Yes Interaction: Yes (very small)

Practice Gender: NO SES: Yes Interaction: Yes (very small)

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