These found significant positive relationships between age and shoe ownership in the full sample, r(750) = 0.247 , p < 0.001, to better understand the data, men owned fewer shoes than women. The average number of shoes owned by women was 21.9 pairs, while the average by men was 9.8 pairs. Although no previous research has been conducted specifically on this topic, studies have been done on the relationship between gender, age, and clothing purchasing behaviors. Psychologists like Kenrick and Trost (1993) believe that, based on evolutionary theories, women care more about having good looks in order to attract a male partner, while men care more about physical attractiveness of their female partners. This theory can be used to explain why women are more likely to overbuy than men. In a 2004 UK study by Dittmar, she found that over 85% of people suffering from excessive buying were women, while it was atypical for British men to be excessive buyers. Women also seem to buy more things for emotional and pleasurable reasons rather than men's practical reasons. (Lott and Maluso 1993) Women also have incredibly positive attitudes when shopping and have a "leisure setting" for purchasing clothes, while men tend to have more negative attitudes and consider the purchase as a task to be accomplished in a minimum of time.