Anxiety, discrepancy between need value and expectancy, and internal-external control.
D000124:Achievement; D001007:Anxiety; D004532:Ego; D005120:Extraversion, Psychological; D005260:Female; D006801:Humans; D007439:Introversion, Psychological; D008149:Love; D008297:Male; D009042:Motivation; D011582:Psychological Theory; D012054:Reinforcement, Psychology; D012649:Self Concept; D012938:Social Perception; D011795:Surveys and Questionnaires