Elena conducted an observational study in a metropolitan train station to investigate how commuters utilize different seating areas. Elena sat on a far balcony overlooking the main platform where she was hidden from view and noted down whether passengers sat alone, sat in groups, or stood near the ticket machines.
Identify the type of observation that Elena used in this study.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.