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Kin Selection This theory states that people are more likely to help blood relatives in difficult situations because this increases the odds…

Karen Horney Karen Horney (1885 – 1952) is known for developing Feminine Psychology. Her work has influenced how psychology views gender differences.…

Just-World Phenomenon The just-world phenomenon is the tendency for people to believe that the world is just and that people therefore get…

Just Noticeable Difference The Just Noticeable Difference (JND), also known as the difference threshold, is the minimum difference in stimulation that a…

John Watson John Watson (1878 – 1958) is often called the Father of Behaviorism, which emphasizes objective and observable data such as…

James-Lange Theory of Emotion James-Lange Theory of Emotion was posed by both James and Lang at approximately the same time (hence the…

Ivan Pavlov Ivan Pavlov (1849 – 1936) is best known for his work describing the psychological phenomenon of Classical Conditioning. From his…

Iris This is the part of the eye that gives you those beautiful blue (or whatever colour) eyes that you have. Specifically,…

Intuitive Thought In Piaget’s theory of cognitive development, the second stage is called Preoperational thought and it has two substages: Symbolic Function…

Intuition Intuition is a person’s capacity to obtain or have direct knowledge and/or immediate insight, without observation or reason. It’s the “gut…