Lecture 5 - Jan 18th

Lecture 5 - Jan 18th - 215; Jan. 18th, 2010 Interpretation...

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Interpretation of Findings - Rorschach: inkblot and you have to say what you see which is supposed to tell the psychologist a lot about your personality - often research Fndings are also ambiguous and we need to interpret the Fndings accordingly - ex. if we see a correlation between academic performance and intelligence (r = .56); p<. 01 (which means that it is less than 1% to get this by chance; demonstrating that it probably re±ects something real). so we try to replicate the study but Fnd no relationship between academic performance and intelligence - how is this the case? sometimes we do not take into account the degree to which these variables will vary from one population to the next. - the initial study was done on high school students; in high school almost everyone in the population will be represented in the sample (b/c most ppl go to high school), so some will very very smart and some wont be. Both variables are showing considerable variance (they are moving around a lot); a correlation means as one variable changes the other one does as well therefore in the sample you have the numbers need to be changing or you wont be able to detect a correlation - if your study was done on Grad students. .. in order to get into grad school they needed to have an amazing undergrad performance and therefore the variable there is not changing from one person to the next. .. the relationship between the 2 variables need to be able to vary so your sample needs to be well suited to ask these questions so that the variables vary to detect if it is related to another variable Personality and Success - Type A personalities are promoted more often than Type B personalities - CEO’s are more likely to be Type B than Type A - how do we make sense of this? - there could be multiple interpretations for these Fndings but we want to pick one Survey on Sex and Affection - would you be content to be held close and treated tenderly and forget about the “act” - 72% of women say “yes”! BUT the survey was conducted by Ann Landers who is a columnist who is old and the people who read her column may not necessarily be representative of the general population (we need a critical eye); this population may not generalize to the general population Deception and Ethics - participants are often deceived about the true nature of the study Protecting participants - sensory deprivation experiments - McGill was looking at what happens to people when you deprive them of sensory inputs - people (Donald Hebbs) was looking at what happens to the mind . A sensory deprivation chamber (lying on soft bed with cotton all around and ear plugs and 215; Jan. 18th, 2010
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goggles) for 24 hours and nothing happens in a day so they did it longer, 2 days, 3 days. in 3 days people were hearing voices and hallucinating and it was difFcult
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This note was uploaded on 03/01/2012 for the course PSYCHOLOGY 215 taught by Professor Sullivan during the Winter '11 term at McGill.

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Lecture 5 - Jan 18th - 215; Jan. 18th, 2010 Interpretation...

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