average - Correct Answer used as a measure to determine a central value or location from the data used
cross-sectional data - Correct Answer data collected at the same or approximately the same point in time
data - Correct Answer things about which information can be collected and analyzed (people, numerical information,
geographical areas, etc.)
data set - Correct Answer an rectangular array of information that contains the various categories of data collected for
a specific study
descriptive statistics - Correct Answer uses numerical and graphical methods to explore data (e.g., look for patterns)
compiled summary of the data analysis in numerical, tabular, or graphical form
element - Correct Answer the individual and unique entry in a data set about which data has been collected,
analyzed, and presented in the same manner
experimental study - Correct Answer the researcher manipulates one of the variables and tries to determine how the
manipulation influences other variables
histogram - Correct Answer summary count of items in each category in a single variable, in a tabular or graphical
view
index number - Correct Answer most widely utilized numerical descriptive statistic
- typically a compilation of several data sources and weighted to provide a consistent review of a measured variable
observation - Correct Answer All the information collected for each element in a study
observational study - Correct Answer researcher collects information not by influencing the variables in the study, but
by simply observing the variable in action (active or passive)
population - Correct Answer The entire number of items in a large group
sample - Correct Answer a subset of the population
statistical inference - Correct Answer the process of using data from a sample to gain information about the
population
statistics - Correct Answer science of data
collecting, classifying, summarizing, organizing, analyzing and interpreting information
time series data - Correct Answer data collected over several time periods
variable - Correct Answer a particular, measurable attribute that the researcher believes is needed to describe the
element in their study