Mr. van der westhuizen wants to visit his grandchildren In France. he has heard that it is very expensive for South Africans to travel to France since the exchange rate is so high. being a retired teacher, he decides to make a pocket sized conversion table to which he can refer when he wants to buy something... round off the exchange rate to the nearest R5... ​

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?