The 'roving eye' effect is the propensity of people in relationships to 'eye up' members of the opposite sex. I fitted 20 people with incredibly sophisticated glasses that tracked their eye movements .Over four nights I plied them with either 1, 2, 3 or 4 pints of strong lager in a nightclub and recorded how many different people they eyed up (i.e., scanned their bodies). Is there an effect of alcohol on the tendency to eye people up?

Pairwise Comparisons Measure: MEASURE_1 95% Confidence Interval for Mean Difference" Difference (1- (1) alcohol (J) alcohol J ) Std. Error Sig, b Lower Bound Upper Bound 1 2 050 742 1.000 -2.133 2.233 W -3.200 1.454 242 -7.480 1.080 -3.450 1.391 136 -7.544 .644 2 -.050 742 1.000 -2.233 2.133 W -3.250 1.420 202 -7.429 929 -3.500 1.139 038 -6.853 -.147 3 3.200 1.454 242 -1.080 7.480 3.250 1.420 202 -.929 7.429 A N -.250 1.269 1.000 -3.985 3.485 4 3.450 1.391 136 -.644 7.544 N 3.500 1.139 038 .147 6.853 3 .250 1.269 1.000 -3.485 3.985 Based on estimated marginal means *. The mean difference is significant at the .05 level. b. Adjustment for multiple comparisons: Bonferroni