The purpose of this study was to determine the gender differences in the relationships between knowledge of, attachment with, and attitude toward a parent brand and perceived risk of, attitude toward, and purchase intension of an extended product in the case of brand extension. A total of 300 survey questionnaires were distributed to 150 male and 150 female college students, and 275 responses were used for the final analysis. The results showed that for male college students, knowledge of the parent brand had a positive relationship with brand attachment with the parent brand, which in turn had a positive relationship with brand attitude toward the parent brand. Knowledge of the parent brand had a negative relationship with perceived risk of the extended product, which again had a negative relationship with attitude toward the extended product. In addition, for male college students, knowledge of the parent brand had a positive relationship with attitude toward the extended product, which also had a positive relationship with purchase intension of the extended product. For female college students, brand attachment with the parent brand had a positive relationship with brand attitude toward the parent brand, which also had a positive relationship with attitude toward the extended product. Brand attachment with the parent brand showed a negative relationship with perceived risk of the extended product, which also had a negative relationship with attitude toward the extended product.

This research used an experimental design in an effort to assess the influence of brand gender and salespeople on the attitudes toward brands according to the males' gender identity traits. The study used a three-way split-plot experimental design, and data were analyzed by t-tests, and ANOVA. The subject of this research was men in their 20s and 30s, and a total of 178 people were selected through convenience- sampling. The findings are as follows: first, masculine male consumers preferred masculinity fashion brands; however, androgynous consumers preferred brands that reflect androgyny. Second, there were no differences in brand attitude according to the gender of the salesperson for the masculinity group, but the androgynous group estimated the brands as better when the salesperson was female. Third, there were no differences in the brand attitudes among consumers according to gender of the salesperson for the Galaxy; however, for Solid Homme, brand preference was stronger when the salesperson was a woman. Fourth, the influence of brand gender and salesperson gender on brand attitudes differed according to the gender of the consumer. Therefore, apparel companies must clearly understand the characteristics of consumer gender identity and execute proper marketing strategies in order to induce stronger positive attitudes toward their brands. Moreover, apparel companies should perceive that brand gender and the gender of the salesperson can consequently encourage brand preferences.