Experimental Psychology

Experimental psychology is a field of study which seeks to understand the basic processes underlying cognition, emotion, and behaviour. It is an empirical field of inquiry that relies on scientific investigation and experimentation. Experimental psychologists use a wide variety of methods to study and understand the various components of cognition, emotion, and behaviour. Experimental psychology typically involves two main pillars of research: laboratory-based studies, which involve the controlled manipulation of variables to study the effect of those variables on behaviour; and field-based studies, which involve observing behaviour in natural settings. Laboratory-based studies often involve forming an experimental hypothesis, manipulating the independent variable, and observing and measuring outcomes. These experiments can be relatively simple or highly complex, depending on the question being studied. Field-based studies typically involve observing, recording, and analysing behaviour in a natural or real-world setting. Regardless of the specific type of study being conducted, experimental psychologists aim to accurately describe behaviour and to develop comprehensive theories that help explain why behaviour occurs. To achieve this, researchers often employ a variety of techniques, such as psychometrics, neuroimaging, signal detection theory, latent variable models, and behavioural analysis. Psychometrics, for example, makes use of tools such as questionnaires, aptitude tests, personality inventories, and other self-report and observational instruments to measure psychological constructs. Neuroimaging techniques, such as fMRI, allows researchers to observe how the brain reacts to specific stimuli. Ultimately, the goals of experimental psychology are to accurately describe and understand behaviour through the application of scientific methods. The research conducted by experimental psychologists helps inform how we understand and manage psychological disorders, how we create effective interventions for tricky issues, and how we develop interventions for individual and social problems. As such, the field is invaluable to the scientific community, as well as to society at large.