chapter 1 Flashcards
Refers to that body of numerical facts of any kind
plural sense
the process of determining the value or label of a particular for a particular experimental unit.
measuremnet
What are the levels of measurement
*ratio
*interval
*ordinal
*nominal
Observations can be named without particular order or ranking imposed on the data. Words, letters, and even numbers are used to classify data.
nominal
provides number that reflects differences among item without no absolute zero score. The order and difference between the variables can be known.
interval
Describes ranking or order. The difference or ratio between two rankings may not always be the same.
ordinal
The order and difference can be described. Additionally, it has a true zero and the ratio between two points has a meaning.
ratio
data that can be counted, e.g., number of patients
in a hospital, number of students who obtained 1.0
grade in MMW. These data assume only a
countable number of values
discrete data
is a characteristic of interest measurable on each and every individual in a given sample or population
variable