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Question 18N.3.HL.TZ0.6a

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Date November 2018 Marks available [Maximum mark: 3] Reference code 18N.3.HL.TZ0.6a
Level HL Paper 3 Time zone TZ0
Command term Outline Question number a Adapted from N/A
a.
[Maximum mark: 3]
18N.3.HL.TZ0.6a

A patient was asked to trace a line between two guidelines of a star shape, starting at point S (see star image) while viewing the star in a mirror. The graph shows the number of times the patient strayed outside the boundaries while drawing the star in each trial for both hands.

[Reprinted from Neuron, 20(3), Brenda Milner, Larry R. Squire and Eric R. Kande, 'Cognitive neuroscience and the study of memory',
pp. 445–468, Copyright (1998), with permission from Elsevier. https://www.sciencedirect.com/journal/neuron]

(a)

Outline how this experiment shows learned behaviour.

[3]

Markscheme

a. with each trial the drawings get better/less errors
OR
each day the patient becomes better at drawing the star ✔

b. by day 3 the patient makes few mistakes/less fluctuations ✔

c. even though left hand went through fewer trials, still an improvement ✔

d. practice improves the behaviour
OR
learning occurs «over time» with repetition ✔