A researcher compares colour recognition in students from a large English-speaking city with a Native American group living in a rural area. The two groups differ in how accurately they recognise some shades.
Explain one problem with concluding that language caused this difference.
67 exam-style questions on Oxford AQA IGCSE Psychology 2.1 Communication, covering 2.1.1 Language and thought, 2.1.2 Variation in recall and colour recognition, 2.1.3 Human versus animal communication, 2.1.4 Von Frisch's bee study, 2.1.5 Properties unique to human communication, 2.1.6 Verbal and non-verbal communication, 2.1.7 Functions of eye contact, 2.1.8 Body language, 2.1.9 Personal space, 2.1.10 Darwin's evolutionary theory of NVC, and 2.1.11 Evidence NVC is innate or learned. Each one has a worked solution and a mark scheme showing where the marks go.