Buss has conducted numerous studies comparing the mate preferences of individuals by factors such as gender, time, parents vs. offspring, and type of relationship; he has also conducted a large study investigating universal mate preferences.
Buss has conducted numerous studies. Buss were comparing the mate preferences of individuals by factors such as gender. Buss were comparing the mate preferences of individuals by parents vs. offspring. Buss were comparing the mate preferences of individuals by type of relationship. Gender is time. He has also conducted a large study. He was investigating universal mate preferences.