Experimental method
In the study of human behavior, experiments are usually piloted in the laboratories under conditions that are controlled. In this way, all aspects of the situation are supposed to be kept constant except the one that is being looked at (Bucknell 2011). In this case, the element to be varied is known as the independent variable (IV) that is changed in a manner that is very precise.
The experimental method has both its strengths and weaknesses just like any other research method.
Strengths
• Laboratory experiments are usually easier to replicate and repeat to be sure of the reliability of the findings as the procedures used are standardized.
• It gives opportunity to the research team to measure and create experiments that would usually be problematic to set up or observe in the real life situation
• The IV changes make it possible to find the measurement of the DV effect hence consents the cause and effect declarations to be made.
Weaknesses
• Lack of realism and ecological validity in the laboratory is possible; this is due to the artificial setting.
• Researchers who are involved in the experiment may cause experimenter effects. It is a situation where their individual expectations influence the behavior of the participant.
• The actual behavior of the participants may not be portrayed as they are usually aware that they are under observation hence this could lead to demand characteristics.
References
Bucknell, A., & Clark, C. (2011). An experimental method for recording the behaviour of human isolated colonic segments. Gut, 8(6), 569-573. doi:10.1136/gut.8.6.569
