If you want to explore whether a curve-linear relationship exists between the time a person spends on online shopping (TIME, independent variable) and the level of enjoyment the person obtains from online shopping (ENJOYMENT, dependent variable), what would you do?

Step 1: calculate the squared term of TIME (TIME-squared); Step 2: Regress ENJOYMENT on TIME and TIME-squared

 

Step 1: Gather additional data on the consumer's gender; Step 2: Regress ENJOYMENT on TIME and gender

 

Step 1: recode TIME into a categorical variable; Step 2: Regress ENJOYMENT on the recoded variable.

 

Step 1: calculate the squared term of ENJOYMENT (ENJOYMENT-squared); Step 2: Regress ENJOYMENT on TIME and ENJOYMENT-squared