Lesson 2 & 3

Field where student grades and academic performance are measured using numbers

Field that uses satisfaction ratings and market surveys

Field where theories are tested and findings are generalized from samples

Field where medicines and vaccines are developed through research

Field where technological devices like phones and tablets are results of innovations

Variables that are countable and have a fixed number of values (e.g., number of students)

• Continuous Variable

• Discrete Variable

• Nominal Variable

• Ratio Variable

Variables that describe data using group names such as brand names or gender:

• Continuous Variable

• Discrete Variable

• Nominal variable

• Ordinal variable

Variables with only two possible outcomes (e.g., Yes or No)

• Dichotomous variable

• Continuous Variable

• Nominal Variable

• Ratio Variable

Variables used to assign labels without order (e.g., male/female, brand names)

• Ordinal Variable

• Interval Variable

• Nominal Variable

• Ratio Variable

Variables used to rank or order data (e.g., 1st, 2nd, 3rd place)

• Nominal Variable

• Dichotomous Variable

• Ordinal Variable

• Interval Variable