A researcher conducted a covert naturalistic observation to investigate prosocial behavior (specifically, door-holding etiquette) in different social environments. The observation took place in three distinct settings: a city-center train station, a local shopping mall, and a university campus cafe. Members of the public who happened to be passing through these entrances during the observation periods made up the sample. The researcher recorded behaviors such as holding the door open, saying 'thank you' (verbal appreciation), and walking through without acknowledging the other person.
Explain one strength and one weakness of using an opportunity sample for this study.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.