title: A longitudinal study of Piaget's developmental stages and the concept of regression. II.
mesh_terms: D000124:Achievement; D000339:Affect; D002648:Child; D002657:Child Development; D003071:Cognition; D003192:Compulsive Behavior; D004644:Emotions; D005260:Female; D006801:Humans; D007092:Imagination; D007361:Intelligence Tests; D008297:Male; D010551:Personality; D011336:Probability; D011582:Psychological Theory; D011594:Psychometrics; D012392:Rorschach Test; D011795:Surveys and Questionnaires; D013850:Thinking