experimental designs and types

• repeated measures = repeated with both groups and has the same conditions
• independent measures = not repeated with the same group. two groups
• Matches pairs = two groups with pairs made from the people in each group
• There are three types of experiments lab, field and natural
• Lab experiment = special environment where all the variables are controlled
• Field experiment = An everyday environment
• Natural experiment = IV is not controlled by the experimenter. Making use of a naturally occurring event