Psychology SL P2

Psychology SL P2 - INTERNATIONAL BACCALAURAT BACHILLERATO...

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MARKSCHEME May 2001 PSYCHOLOGY Standard Level Paper 2 25 pages M01/350/S(2)M BACCALAUREATE BACCALAUR&AT INTERNATIONAL BACHILLERATO INTERNACIONAL
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Biological bases of behaviour [13 marks] 1. (a) Describe one invasive and one non-invasive method of investigating brain functions. Candidates may choose one of the formal methods of invasive investigations which could include the use of surgery, the use of radio active substances, electroconvulsive treatment, single cell recording, or any method in which the brain is subjected to interference. Examiners should also accept answers that include accidents to the head where the brain is subsequently investigated ( e.g. Phineas Gage or injured casualties in war). There are several non-invasive methods including electro-encephalography, (EEG), and magneto-encephalography, (MEG). Whatever method is described in this section, it should not involve an invasive treatment. Examiners should ensure that the technique used is clearly described, including the objective of the particular technique. Given the clarity of this question, material which occurs in the subsection above where it could not earn marks, should not be exported to another section where it could earn marks. In order to obtain high marks, the descriptions presented should be both clear and detailed. [12 marks] (b) Consider the effectiveness of each of the two methods that you have selected in comparison to alternative methods of investigating brain functions. In this case the candidate may choose any specific methods for comparison. For example EEG is a rather coarse technique compared to single cell recording techniques or the more sophisticated MEG, but both could be argued to be effective according to the use to which they are put. In order to gain a high mark the answer should deal with &effectiveness± in a competent and thorough way. If non-human animal studies are used these should also be given credit on their merit. ² 3 ² M01/350/S(2)M
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[6 marks] 2. (a) Outline one theory of the phenomenon of hypnosis. This section is about theory. Candidates should choose one of the two main theories of hypnosis, state or non-state, and these should be clearly described. It is not necessary for a study of hypnosis in action to be used in this subsection, and if it does occur here it should not be given credit. [6 marks] (b) Describe one psychological study where hypnosis is used. It is in this section that the application is required and whilst most candidates are likely to use a laboratory based study, studies that are based on hypnotism on the stage of a theatre can be accepted provided that they are clearly part of a psychological study, and not a lay description of a theatrical entertainment. Other studies may include those used within a medical setting, including child birth or dentistry or some types of medical operations, but the psychological aspect should be made explicit.
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Psychology SL P2 - INTERNATIONAL BACCALAURAT BACHILLERATO...

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