Sedikides ya samu karsashin gabatarwa daga abin da aka yi wa lakabi da Tarairayar Fargaba (Terror Management Theory TMT), wadda akalla ta kai 8,000 a daukacin jinsi (tsakanin mace da namiji) fiye da sauran nau'ukan mahangar tantance tasirin aikin kwakwalwa a dabi'u.
