Term

Definition
science of collecting, analyzing, and drawing conclusions from data 


Term

Definition
entire collection of individuals about which information is desired 


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Definition
section selected from the population for study 


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Definition
characteristic of a population 


Term

Definition
quantity computed from values in a sample 


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Definition
information that can be counted or measured numerically 


Term

Definition
information that describes the attributes or properties that an object possesses 


Term

Definition
numerical data where the values are isolated points on the number line 


Term

Definition
numerical data where the values form an entire interval on the number line 


Term

Definition
survey where those being asked the questions are given the option of answering them or not 


Term

Definition
a type of study where individuals are observed or certain outcomes are measured 


Term

Definition
a study where the investigator observes how a variable behaves when the researcher manipulates one or more variables 


Term

Definition
a variable that is both related to group membership and the response variable of interest in a research study 


Term

Definition
a variable that is both related to group membership and the response variable of interest in a research study 


Term

Definition
sample cosen using a method that ensures that each different possible sample of the desired size has an equal chance of being chosen 


Term

Definition
separate random samples are independently chosen from each subgroup (when the population has been separated into subgroups) 


Term

Definition
a value k is chosen and the kth person is chosen and every kth individual is chosen (used when the population consists of a list or sequential arrangement) 


Term

Definition
dividing the population into non overlapping subgroups and then choosing the clusters at random 


Term

Definition
using an easily available or convenient group to form a sample 


Term

Definition
either the person giving the pill know who gets which pill and the person receiving the pill does not know or vice versa 


Term

Definition
neither person knows who is receiving the pill 


Term
nominal level of measurement 

Definition
classifying cases in unordered groups 


Term
ordinal level of measurement 

Definition
classifying cases in ordered groups but the distance between the groups may vary 


Term
interval level of measurement 

Definition
classifying cases in ordered groups but the distance between the groups may vary 


Term
ratio level of measurement 

Definition
groups where there is a natural 0 point 


Term

Definition
made up by methods for organizing and summarizing data 

