experimental

• How do experiments function as a method in psychology?

  Experiments allow one variable to be manipulated while keeping everything the same.
• What is the significance of manipulating one variable in experiments?

  It allows researchers to show cause and effect.
• lab experiments 


  conducted under controlled conditions in which the researcher manipulates independent variable to measure the effect on dependent variable
• quasi experiments can be conducted in a lab or in a natural environment. there is no control over the independent variables as it already exists witihin the sample e.g gender, age
• strengths of lab experiments are that there is high control over extraneous variables which provides high internal validity regarding the cause and effect. they are also easily replicable which increases validation
• weaknesses of lab experiments are that they lack venerability as they are in an artificial environment. There are also high demand characteristics and low ecological validity
• field experiments are done in the everyday environment of the participants. the experimenter manipulates the independent variable but in a real life setting
• strengths of field experiments are that the behaviours are more valid and natural and the participants may be unaware of the study which increases validity
• weaknesses of field experiments are that they lack control of variables and lack the opportunity to replicate
• strengths and weaknesses of quasi studies are similar to that of lab experiments