Step 2: Answer the Following Questions Based on your interpretation of this article, why did the researchers hypothesize there might be a link between these variables? (3 pts) Here's what the Psypost journalist wrote about the results: The researchers found that daily smartphone checking predicted higher levels of daily cognitive failures even after controlling for age, sex, monthly household income, subjective socioeconomic status, daily stressor exposure, daily positive affect, and daily negative affect. In the results above, what is the criterion variable? What are the predictor variables? (2 pts) Why do you think the researchers controlled for multiple variables and why do you think they choose those variables to control for? (3 pts) Bonus Question: Is this study an example of a linear regression or a multiple regression? (1 pt)