To describe- Psychology aims to understand the behavior of others and gather information about the way the brain works in order to better serve humanity.By observing different human behaviours, psychologists determine what is normal and healthy and what is unhealthy. Psychology analyzes the thoughts, feelings, actions and goals of people through the help of various case studies, observations and surveys.
To Explain- In order to explain a behaviour, psychologists must conduct experiments to ensure that the behaviour is not an anomaly. If there’s only one person (or animal) exhibiting this behavior, it certainly isn’t a cultural norm.
To Predict- Based on past observed behavior, a psychologist aims to predict how that behavior will appear again in the future and if other people will exhibit the same behavior.
To Control- It meant that teachers could take control of their classroom easier, parents could teach their children to exhibit good behaviour, and manipulative older siblings could control the behaviours of their younger siblings. In other areas of psychology, experiments are used to train new employees faster, increase the success of students and reduce drug addiction.
A student is trying to reach a goal, that goal is to get good grades. If I wanted to get a phone for working hard in school, it would then be an incentive.