In Baddeley and Hitch's working memory model, which component handles verbal and acoustic information?
- AThe phonological loop
- BThe visuospatial sketchpad
- CThe episodic buffer
- DThe central executive
Formula sheets, the key method steps for every topic and 8 practice problems, with full solutions at the back.
In Baddeley and Hitch's working memory model, which component handles verbal and acoustic information?
In a city, 85% of cabs are green and 15% are blue. A witness who is correct 80% of the time says the cab in an accident was blue. What is the probability it really was blue?
Baumrind's authoritative parenting style combines:
Genie was isolated and given almost no language input until she was found at age 13. Later she learned many words but never mastered grammar. This case is often used to support:
In Asch's impression studies, changing one word in a list of traits from "warm" to "cold" greatly changed the overall impression. This suggests "warm" is a:
Janis used the 1961 Bay of Pigs invasion as a case study. Which feature of the planning group fits his account of groupthink?
Which treatment is recommended as first-line for chronic insomnia in adults?
Expressed emotion research shows that relapse in schizophrenia is more likely when families show:
Answer: A · The phonological loop
The phonological loop stores and rehearses speech-based information. The sketchpad handles visual and spatial information, the central executive directs attention.
Answer: A · About 41%
True blue identified as blue: 0.15 × 0.8 = 0.12. Green wrongly called blue: 0.85 × 0.2 = 0.17. So 0.12 / 0.29 ≈ 0.41. Most people answer 80%, neglecting the base rate.
Answer: D · High warmth with high, clearly explained expectations
Authoritative parents are responsive and set firm, reasoned limits; this style is associated with good social and academic outcomes in many studies.
Answer: D · A critical or sensitive period for language acquisition
Genie's limited grammar is consistent with a sensitive period, though the case is confounded by severe abuse and possible earlier disabilities, so it cannot be conclusive.
Answer: D · Central trait
Central traits such as warm and cold shape how other traits are interpreted, while peripheral traits have little effect on the overall impression.
Answer: D · Members suppressed doubts and assumed everyone agreed
Janis described symptoms such as self-censorship, an illusion of unanimity and pressure on dissenters, leading to a poorly examined plan.
Answer: C · Cognitive behavioural therapy for insomnia (CBT-I)
CBT-I combines sleep restriction, stimulus control, sleep hygiene and cognitive techniques. It has lasting effects and is recommended before hypnotic drugs.
Answer: C · High criticism, hostility and emotional over-involvement
High expressed emotion predicts higher relapse rates; family interventions that reduce it lower relapse.
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