Types of Experiments

Question 1

lab experiment definition

Answer 1

experiment conducted in a very controlled environment where the independent variable is manipulated by experimenter

Question 2

Strengths of lab

Answer 2

very controlled -> reducing extraneous variables, increase internal validity
+ replicability -> enhances validity

Question 3

Weakness of a lab

Answer 3

contreives situation -> participants may not behave naturally, low ecological validity
factors affecting procedure -> researcher bias & demand characteristics

Question 4

Definition of field experiment

Answer 4

experiment conducted in natural real-life settings where IV is manipulated by researcher

Question 5

Strengths of field

Answer 5

less contrived -> high ecological validity
Avoids demand characteristics -> unaware they are being watched

Question 6

Weakness of field

Answer 6

Less control -> extraneous variables can’t be reduced fully
Time consuming -> setting up study, can also be expensive
Ethical -> no consent