Rhoda Frank 
Primary Effect, Interpersonal Perception, and First Impression Biases 

Research Paper (postgraduate) from the year 2023 in the subject Psychology – Miscellaneous, grade: A, , course: Psychology, language: English, abstract: Observation is a significant influence on how individuals perceive other people around them. Therefore, perception is selective and will differ from one person to another. The way people perceive things is linked with their inherent characteristics, and it is possible for two people to observe one subject and have different perceptions about the same. The paper, therefore, sought to identify the socio-psychological attitudes aimed at a person’s image assessment and the primary effect impact on the attitude of an individual. The study involved 100 1-4-year undergraduate and 1-2-year graduate students from the Faculty of Psychology of the local university. 88 participants were selected for the second stage of the experiment (44 males, 44 females). The respondents’ age was from between 19-22 years (N = 88, M = 21, SD = 1.5). Questionnaires were administered to the respondents to elicit answers, which were analyzed and informed the conclusions. The study concluded that primary influences perception and it is visible in observation. It was concluded that observation is a purposeful, organized, long-term perception. Expression is also important, in how a person perceives another. The voice of a person also had the same effect on the perception of an individual.