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?

Tests of Within-Subjects Contrasts Measure: MEASURE_1 Type Ill Sum Partial Eta Noncent. Observed Source alcohol of Squares df Mean Square F Sig. Squared Parameter Power alcohol Linear 184.960 184.960 7.981 011 296 7.981 764 Quadratic 450 450 056 816 003 056 056 Cubic 39.690 39.690 2.433 .135 .113 2.433 .316 Error(alcohol) Linear 440.340 19 23.176 Quadratic 154.050 19 8.108 Cubic 310.010 19 16.316 a. Computed using alpha = .05