Types of Variables and Levels of Measurement Flashcards
phenomenon whose value remains the same
from person to person, from time to time, or
from place to place
Constant
information on any characteristic that can
vary
Variable
its values and categories cannot be measured with certainty because it changes over time
Variable
Give examples of constant
Value of pi
Gravity (g) = 9.8 m/s2
Speed of light
Avogradro’s number
Give examples of variable
smoking habits, age of gestation, weight,
educational attainment
Variables can be ______or _________ depending on the objective of the data collection
Qualitative, Quantitative
describe by features, generally by words
▪ categories are simply used as labels to distinguish one group from another
Qualitative
it cannot be used as basis to say that one group is greater or lesser, higher or lower, or better or worse than the other group
Qualitative
one whose categories can be measured or ordered according to quantity or amount
Quantitative Variables
Levels of Measurements
Nominal, Ordinal, Dischotomous, Interval, Ratio
variables that have no measurement scales
and no rank order
Nominal
examples of dichotomous
skin color, biological gender, health status
Examples of nominal
blood types, vegetable or fruit colors, marital status
is nominal quanti or quali?
quali
Represent categories, names, or labels (does not represent quantity; no implied order to the categories).
Nominal