Compare the developmental and cognitive areas of Psychology in terms of their aims of study and the studies completed in them.

The developmental area of Psychology focuses on how behaviour changes over time, as a person grows up. It has a particular focus on behaviourism (the belief that all behaviour is learned). Meanwhile, the cognitive area of Psychology focuses on mental processes, like memory and attention. Studies in the developmental area of Psychology tend to use observational methods of data collection. For example, Bandura's (1961) transmission of aggression study involved an observer taking note of a participants' behaviour every 5 seconds for 20 minutes. Meanwhile, the cognitive area of Psychology tends to use a self-report method of data collection. For example, Loftus and Palmer's (1975) reconstructive memory study involved participants writing a brief summary of the car crash film they had watched, as well as answering a questionnaire with a critical question of, "At what speed were the cars going when they...each other?", with the verb in the question being either "hit", "smashed", "bumped", "contacted", or "collided". This demonstrates a fundamental difference in the ways in which these two areas of psychological study tend to collect data.