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Design Two 2 (sex: male, female)×3 (group: imagery control, prime control, interaction) ANOVAs were conducted to examine the effect of both sex and group on the dependent variables, ATG scores and IAT scores. [...]

The participants were all enrolled in a first year psychology unit at the University of Sydney and participated for course credit. [...] Of 93 participants who agreed to participate in the study eight participants were excluded as they did not identify as heterosexual, leaving a sample of 85 participants (52 female). Mean age was 20.02 years (SD=3.85, range 18–38). Research Randomizer was used to randomly allocate 27 participants to the imagery control group, 27 to the prime control group and 31 to the interaction group. The mean age for the imagery, prime control and interaction groups were 19.70 (SD=2.91), 19.70 (SD=3.85), and 20.58 (SD=4.57) respectively. [...]

Procedure Participants were randomly allocated to one of three conditions prior to arriving at the study. [...] Upon arrival, participants were asked to sit in the centre table of the room to read the participant information sheet and sign a consent form. When all participants had arrived, participants were directed to their allocated seat. After a brief introduction to the study, read aloud by the experimenter, A4 sheets with the scenario instructions were placed in front of participants. Participants were given 2 min to imagine the scenario they were allocated. After the two-minute period, participants were directed to the first LimeSurvey question where they were asked to record aspects of the scenario they had just imagined. The order in which participants completed the IAT or the ATG was counterbalanced to ensure that the order did not affect the results. [...]