When she turned 18, kaitlyn purchased 130 shares of stock a for $47 per share; 68 shares of stock b for $32 per share; 71 shares of stock c for $102 per share; and 12 shares of stock d for $141 per share. at age 32 kaitlyn sold stock a for $7210, stock be for $3689, stocks see for $8542, and stock d for $2005 with annual dividends of $63 per year. which stock provided kaitlyn with the greatest return on her investment? for $141 per share. at age 32 kaitlyn sold stock a for $7210, stock b for $3689, stock c for $8542, and stock d for $2005 with annual dividends of $63 per year. which stock provided kaitlyn with the greatest return on her investment? a- stock a b- stock b c- stock c d- stock d

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?