Which statement about insomnia is correct?
Sleep-maintenance insomnia means choosing to go to bed late.
Both forms of insomnia are defined by dreaming during REM sleep.
Sleep-onset insomnia is difficulty falling asleep.
Sleep-onset insomnia means waking repeatedly after falling asleep easily.
53 exam-style questions on OCR GCSE Psychology 6.1 Key Concepts, covering 6.1.1 Functions, features and benefits of sleep, 6.1.2 Causes of sleep disorders, and 6.1.3 Endogenous pacemakers and exogenous zeitgebers. Each one has a worked solution and a mark scheme showing where the marks go.