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Definition
a collection of things having some quantifiable characteristic in common
Dynamic |
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a numerical value that summarizes the population data
Stable even though the population is dynamic |
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Definition
| The common characteristics of the population |
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| The common characteristics that the members of the population lack |
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| Unidentified characteristics of a population that could potentially affect study results |
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| A group of individuals that represents the population |
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| every member of the population has an equal chance of being selected |
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Definition
| selection of one member does not influence the chance of choosing any other |
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| Any measurable characteristic found in each individual in a population |
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Definition
| numbers that reflect a value |
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Definition
| no numerical value even if the categories have been assigned a number |
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| Binary or Dichotomous Variable |
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Definition
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Definition
| extensive range of possible values |
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Definition
| No scale, a labeling system, categories with no order |
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Definition
| Ordered categories, no consistent distance between categories |
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Definition
| Continuous variables with mathematical values, the difference between consecutive values is consistent along the continuum |
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| Used for making comparisons between different sets of variables using different scales |
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Definition
a probability that a given outcome could occur by chance
if less than .005 then we are 95% certain that this outcome was not due to chance |
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Term
| Right Skewed Frequency Distribution |
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Definition
The tail of the curve is to the right
There is more count in the tail than expected in a normal distribution
Most cases are to the left
Aka positive skew |
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Term
| Left Skewed Frequency Distribution |
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Definition
The tail of the curve is to the left
There is more count in the tail than expected in a normal distribution
Most cases are to the right
Aka negative skew |
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Definition
| data points that deviate unexpectedly from the others |
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Definition
the average distance of all the values from the cluster
less reliable with skewed distribution |
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Definition
| interval data that is symmetrically distributed |
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Definition
| the data is not interval and is not symmetrically distributed (skewed) |
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Definition
| the number of standard deviations above or below the means in a standardized normal distribution |
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