Social Statistics Flashcards
get an A in Social Statistics (105 cards)
a set of procedures used by social scientists to organize, summarize, and communicate numerical information
statistics
information represented by numbers, which can be the subject of statistical analysis
data
research process
a set of activities in which scientists engage to answer questions, examine ideas, or test theories
five stages of the research process
- asking the research question
- forming the hypothesis
- collecting data
- analyzing data
- evaluating the hypothesis
empirical research
research based on evidence that can be verified by using our direct experience
theory
a set of assumptions and propositions used to explain, predict, and understand social phenomenon
hypothesis
a statement predicting the relationship between two or more observable attributes
variable
a property of people or objects that takes on two or more values
unit of analysis
the object of research, such as individuals, groups, organizations or social artifacts
dependent variable
the variable to be explained, the effect
independent variable
the variable expected to count for (the cause f) the dependent variable
nominal level of measurement
numbers or other symbols are assigned to a set of categories for the purpose of naming, labeling, or classifying the observations
there should be enough categories composing the variables to classify every observation
exhaustive
can nominal categories be rank-ordered?
no
there is only one category suitable for each observation
mutually exclusive
ordinal level of measurement
numbers are assigned to rank order categories. ranging from low to high or high to low.
interval-ratio level of measurement
measurement for all cases are expressed in the same units and equally spaced. Interval- ratio values can be rank ordered.
Dichotomous Varaible
a variable that has only two values
Number of Children per family is an example of a continuous or discrete variable?
discrete
variables that do not have a minimum sized unit of measurement. their range of values can be subdivided into increasingly smaller fractional values.
continuous variables
variables with a minimum sized unit of measurement that can not be subdivided.
discrete variables
Length is an example of continuous or discrete variable?
continuous
population
the total set of of individuals, objects, groups, or events in which a researcher is interested.
sample
a subset of cases selected from a population