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StackO'Statistics
Stack of Statistics
Term | Definition |
---|---|
Stratified Sample | A sample in which the researcher divides the entire target population into different subgroups, or strata, and then randomly selects the final subjects proportionally from the different strata. |
Random Sample | A sample in which every element in the population has an equal chance of being selected. |
Biased Sample | A sample that causes some members of the population to be less likely to be included than others. |
Cherry-Picking | A colloquialism that refers to the act of pointing at individual cases or data that seem to confirm a particular position, while ignoring a significant portion of related cases or data that may contradict that position. |
Non-Responsive Bias | The bias that results when respondents differ in meaningful ways from nonrespondents. |
Self-Selected Sample | The bias that results from problems in the measurement process, like leading questions and social desirability. |
Grouped Data | Data which have been arranged in groups or classes rather than showing all the original figures. |
Ungrouped Data | Raw data. |
Self-Administered Survey | A survey that a respondent completes on eir own, either on paper or via computer. |
Measure of Central Tendency | A measure that tells us where the middle of a bunch of data lies. |
Frequency Distribution Table | Lists the data values as well as the number of times each value appears in the data set. Is used for ungrouped data. |
Face-to-Face Interview | In-person interview. |
Population | The set of individuals, items, or data from which a statistical sample is taken. |