Lila is wallpapering one wall of her bedroom, as shown in the diagram. She will cover the whole wall except for the doorway.
How many square feet of wallpaper does Lila need?
18 ft
Wall
9 ft
6 ft
Door
1
4ft
Lila needs
square feet of wallpaper.

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?