An environmental psychologist designed a new 10-item self-report questionnaire called the Eco-Action Scale (EAS) to assess households' day-to-day pro-environmental behaviors.
To test the validity of the EAS, she administered it to a sample of 60 volunteers and compared their scores against their actual household waste-diversion rates measured over a three-week period. She found a very weak correlation (r=0.12r = 0.12r=0.12), indicating that the EAS has low concurrent validity.
Explain how the validity of the researcher's questionnaire could be improved.
689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.