Experimental method

Question 1

Types of experiments (Lets Find New Questions!: Lets AO1

Answer 1

Laboratory!
-experiment in a controlled environment
-researcher manipulates IV and records effect on the DV
-e.g Loftus and Palmer car crash experiment

Question 2

Types of experiments (Lets Find New Questions!: Lets AO3

Answer 2

S1: be easily replicated due to control of variables
L1: lacks ecological validity due to controlled environment
S2:cause and effect can be established so greater accuracy
L2: demand characteristics are likely due to controlled environment

Question 3

Types of experiments (Lets Find New Questions!: Find AO1

Answer 3

Field!
-in a real life environment
-researcher manipulates IV and records effect on the DV
-e.g Loftus and Palmers weapons focus study

Question 4

Types of experiments (Lets Find New Questions!: Find AO3

Answer 4

S1: high ecological validity
L1: cause and effect can’t be established as less control over extraneous variables
L2: less easily replictaed as less control over variables
L3: ethical issues as particpants unaware of being study

Question 5

Types of experiments (Lets Find New Questions!: New AO1

Answer 5

Natural!
-experiment where IV varies naturally
-researcher takes advantage of external pre-existing IV

Question 6

Types of experiments (Lets Find New Questions!: New AO3

Answer 6

S1: allows research to happen that would be unethical otherwise
L1: naturally occuring events rarely occur, less oppourtunities for research, less scope for generalising
S2: high external validity as study of problem as happening
L2: participants might NOT be randomly allocated to experimental conditions

Question 7

Types of experiments (Lets Find New Questions!: Questions AO1

Answer 7

Quasi!
-experiment where IV varies naturally
-researcher takes advantage of pre-existing internal difference between people
-e.g age,gender, personality traits
-used in Bowlby’s 44 thieves where IV was affectionless psychopathy

Question 8

Types of experiments (Lets Find New Questions!: Questions AO3

Answer 8

S1: high ecological validity ,the lack of involvement of researcher; variables are naturally occurring so findings can be easily generalised to other (real life) settings, resulting in high external validity.
L1: not controlled so allows for extraneous variables, can’t always establish causality, so low internal validity
L2: not replicable due to lack of controlled environment