This document discusses attitude, perception, and aptitude. It defines attitude as a learned tendency to respond positively or negatively towards something. Attitudes have cognitive, affective, and behavioral components. Perception is defined as how people organize and interpret sensory information to understand the world. Key factors that influence perception are attitudes, motives, experiences, and situational factors. Aptitude refers to innate, learned, or acquired abilities and is important for educational and occupational purposes. It also discusses challenges in accurately assessing aptitudes.