AO3 - Methodology of the love quiz by Hazan and Shaver, questionnaire with standardised questions
E: All of the participants the same questions, the same type of data would be collected easily compared by the researchers. Can be replicated increasing the reliability of the result.
CA: Self-reported which is a weakness since participants may say things which are not true to make themselves look better and more socially desirable,
L: Data collected is not always reliable decreasing the internal validity.