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PSYC 3560 (1)

Psych Short Answer.docx

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York University
PSYC 3560
Rebecca Jubis

Normal Distribution Normal distribution: symmetric, bell-shaped curve that represents the pattern in which many human characteristics are dispersed in the population ·Most scores tend to fall near the centre of the distribution (the mean) o The number of scores declines when one moves from the centre of the distribution in either direction · The normal distribution allows us to compare a score to all the other scores in the distribution · If you know mean and standard deviation of a normally distributed trait, you can tell where any score falls in the distribution of that trait o 68% of scores in a distribution will fall within plus or minus one standard deviation o 95% of scores in the distribution will fall within plus or minus two standard deviations · Tests scores that place examinees in the normal distribution can always be converted to percentile scores · Percentile scores: percentage of people who score at or below a particular score o Ex: if you score in the 70th percentile, it means that 70% of the people taking that test did the same or below you § 30% of score takes did better than you ·Not all distributions are normal Not all distributions are normal Self-fulfilling Prophecy self-fulfilling prophecy is a prediction that directly or indirectly causes itself to become true, by the very terms of the prophecy itself, due to positive feedback between belief and behavior. In other words, what you believe will come true because you will subconsciously and consciously act in ways that cause the event to happen. Self-fulfilling prophecies are powerful, and re
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