Fall 09 TA outline with hw key and test practice questions

# Fall 09 TA outline with hw key and test practice questions...

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Click to edit Master subtitle style 1/28/10 Psych 60: Chapter 1

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1/28/10 Terms You Should Know Individuals are objects described by a set of data (e.g., people, animals, things) Variable is a characteristic of an individual and it can take on different values for different individuals Sample is what we actually measure
1/28/10 Terms You Should Know Categorical variable places an individual into one of several groups, has a finite value Quantitative variable takes numerical values and are usually recoded in a unit of measure

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1/28/10 Classes of Quantitative Variables Interval variables have a numeric scale (but zero point is arbitrary and negative numbers are allowable) Ratio variables have a true zero (zero is the absence of whatever of whatever is being measured) and negative numbers are not allowed
1/28/10 Classes of Quantitative Variables Continuous variables have no smallest unit of measurement and partial values are possible Discrete variables do not allow partial variables

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1/28/10 Terms You Should Know Distribution of a variable tells us what values it takes and how often it takes these values Outlier is an individual value that falls outside the overall pattern Symmetric Skewed to right is a distribution where
1/28/10 Graphs Pie charts - include ALL categories that make up the

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## This note was uploaded on 01/27/2010 for the course PSYC PSYC60 taught by Professor Rickard during the Fall '09 term at UCSD.

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Fall 09 TA outline with hw key and test practice questions...

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