Both research and statistics play a major role in the science of psychology as without these two disciplines it is unlikely that it would even exist. This is because research is imperative in psychology as it helps to prove or disprove theories, without it we would not know what we do about the brain and human behaviour as it is all due to research carried out and experiments undertaken. Like other natural sciences it relies on a scientific method, based on the idea of observation and experimentation. The only way that we can check the honesty of the statements and theories which have been formed is through experimental evidence and it is that important evidence that is collated in the form of research and statistics. The integrity of psychology lies in the use of evidence-based practices that correctly and systematically collect data and then analyse it in a significant way. Statistics are just as important for psychology; this is because they help to determine whether the findings made are legitimate and whether they are significant based on the probability of the stats. Psychologist's make observations so that they are able to come up with critical conclusions to a problem and deduce practice results. Without results through research and statistics, the sciences would fail as they would not be orientated towards the pursuit of idea that is practical along with the predictable results. The science of psychology is based on the reliability and validity of measurements as constructs and in order to ensure this happens you need interventions on leadership, job performance, employee stress, and selection techniques. So the role that research and statistics takes in psychology is essential to prove that the psychological theories are correct.
