SAMPLES AND POPULATIONS

# SAMPLES AND POPULATIONS - a In other words an increase in...

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SAMPLES AND POPULATIONS I. Variables and Models A. Variable 1. A variable is a measurable trait or characteristic that is subject to change under different conditions. a. Ex. Race, religious affiliation, political orientation, socioeconomic status. 2. Can help us define and identify testable hypotheses. 3. 2 distinct variable types: a. Independent Variable – The variable hypothesized to cause or influence another. b. b. Dependent Variable – The variable hypothesized as dependent on some other factor. i. May be easier to think of this variable first. ii. Typically will be in your research question. B. Model 1. A model is a visual representation of the causal logic between variables…for example: Income Children’s Intellectual Development 2. The more income a person has, the more likely they are able to nurture their child’s intellectual development. 3. The model above demonstrates a positive relationship between the variables income and children’s intellectual development
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Unformatted text preview: . a. In other words, an increase in one variable, results in an increase in the other variable. b. Ex. Learning disability and a child’s intellectual development. Bullying Academic Performance 4. This model demonstrates a negative relationship between bullying and academic performance . a. In other words, an increase in one variable results in the decrease of another variable. b. Ex. The happier you are and the less likely you are to commit suicide. Class Status Physical Health Status 5. The lower one’s class status, the lower one’s physical health status. a. Is this relationship positive or negative? POSITIVE. 6. Models can be consistent of more than 2 variables. Job Prestige Income Happiness 7. The above model has an entire positive relationship, but it can have both. II. Population A. Definition 1. A population can be defined as the people who inhabit a territory...
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## This note was uploaded on 11/10/2011 for the course SOC 110 taught by Professor Latouche during the Fall '11 term at Indiana.

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