Apartment rentals. A data set lists apartments available for students to rent. Information provided includes the monthly rent, whether or not cable is included free of charge, whether or not pets are allowed, the number of bedrooms, and the distance to the campus. Describe the cases in the data set, give the number of variables, and specify whether each variable is categorical or quantitative.
Section 7: Statistics in Education Stat 2220, Espey ➢ Measuring: assigning a number to represent a specific property ○ Ex: College readiness is measured with standardized tests ➢ Instruments: used to make a measurement ○ Ex: the SAT ➢ Variable: the result of measuring that can be different for different people ○ Ex: SAT score ➢ Validity: an instrument is valid if it truly measures what it is intended to measure ○ Content validity: degree to which the instrument contains a representative selection of subject matters for the measurements ○ Predictive validity: Degree to which the instrument predicts performance in other areas related to the measurement ○ Construct val
