The LOOK is an iOS based iPad app designed to measure viewing time as an estimate of sexual interest. Participants used a 7-point Likert scale to rate 154 images based on sexual attractiveness. The images belonged to 14 differentiated gender and age categories from infants to elderly adults. Before rating each image participants were asked to complete an additional task of locating and touching a small dot found in one of the four corners of the screen. This was included to make sure that participants we attending to each image, and to add another level of information to the results.The purpose of this study was to establish the expected reference group viewing time expected patterns and temporal stability using the LOOK, for nonpedophilic, exclusively heterosexual, college-age males and females. 56 male and 75 female undergraduate students from BYU psychology classes participated. The expected patterns were established and are similar to previously established sexual attraction patterns with slight difference due to the additional categories in the LOOK. The results are broken up into three different sections: dot time (the time from when the image appears to when the dot is touched), rate time (the time from when the dot is touched to when the image is rated), and total time (the combined dot and rate time). Results of the analysis indicate that dot time stability is 96.43% for males and 100% for females. Rate time stability is 64.29% for males, and 73.33% for females. And the total temporal stability is 98.21% for males and 100% for females.



College and Department

David O. McKay School of Education; Counseling Psychology and Special Education



Date Submitted


Document Type





sexual interest, viewing time, phallometry, penile plethysmography, reliability, temporal stability