Which model is shaded to represent the product Two-thirds times one-fourth? A fraction bar divided into 12 parts. 3 parts are shaded blue and 4 parts are shaded pink. 1 part overlaps.
A fraction bar divided into 12 parts. 6 parts are shaded blue and 4 parts are shaded pink. 2 parts overlap.
A fraction bar divided into 12 parts. 6 parts are shaded blue and 8 parts are shaded pink. 4 parts overlap.
A fraction bar divided into 12 parts. 3 parts are shaded blue and 8 parts are shaded pink. 2 parts overlap.

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?