Variables + Individuals

Exam 1

5 W’s

Who (individuals), What (variables), When, Where, Why

individuals

object/person/thing being described by data set

• who

variables

the measurement that is collected

• what

categorical variable

a variable that assigns a category to each individual in the data set

• can be nominal or ordinal level of measure

quantitative variable

a variable that assigns quantities to each individual

• can do calculations with

• must be scale level of measure

nominal

data has no inherent order, no calculations can be done

• categorical variable

ordinal

data has inherent order, no calculations can be done

• categorical variable

scale

data has order, calculations can be done