Psychology 1000 Lecture Notes - Lecture 3: Frequency Distribution, Histogram, Synesthesia

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Elizabeth Campbell

Document Summary

Measures of a central tendency - mean is the arithmetic average (sum/number of. Results) - mode is the score that occurs most often - median is the point above and below which there is an equal number of scores (middle numbers and add them and divide in 2 usually) Measures of variability - range is difference between highest and lowest score, only tells you about two scores - variance is average of squared deviation scores about the mean - Standard deviation is the square root of the variance. Brain is a grapefruit sized, 3 pound mass of tissue made up of neurons - neurons are building blocks of nervous system - at birth our brains are made of about 100 billion neurons. Cerebral cortex: outermost layer of brain, many connections to other areas frontal: complex cognition motor cortex temporal: auditory, language occipital: visual parietal: sensory stuff. 1848, rod went through cheek and through skull.