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These flashcards cover key vocabulary and concepts from the lecture on methods in psychology, particularly focusing on data representation, descriptive statistics, and the interpretation of distributions.
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Sample
Data from population
Representative Sample
Small group of people whos characteristics are all the same as a larger population
Random Sample
Everyone in pop has equal chance of being chosen
Frequency Distribution
Graph showing how often each value occurs (bar graph of scores 1-10)
Negatively Skewed Distribution
Not many low scores
Positively Skewed Distribution
not many high scores
Descriptive Statistics
Mean and SD
Central Tendency
Value near middle of distribution
Variability
How scores differ from each other 1=low 10=high
Range
Largest value - Smallest value