Question

CENGAGE MINDTAP Complete: Chapter 1 Problem Set <Back to Assignment Average: /6 Attempts: 4. Dependent and independent variables As Aa The following research studies consist of two study is experimental or nonexperimental, and then identify the dependent, independent, or quasi-independent variables. or more groups of scores being compared. For each, decide whether the researcher would like to find out more about the determinants of college achievement He conducts a study on 437 college students in which he measures their 1Q levels and their arades in college courses. The researcher created five different groups using the students IQ levels and then compared the average grades among members in different groups. This study is an example of study. The grades of the college students is the variable. 1Q group assignment is the variable. Researchers at a school of public health conducted a study to test the effect of organic produce on cancer mortality. The 400 patients with prostate cancer who volunteered for the study were randomly assigned to a diet of either organic or conventional produce. The progression of their cancer was monitored, and researchers documented the length of time each patient survived. This study is an example of study The survival time is the variable. The type of diet is the variable Cenin

Answer 1

Experimental study - here the researcher can manipulate the predictor variable.

Non experimental study- here the researcher cannot manipulate the predictor variable.

Independent variable - is the variable that can be changed or controlled in the experiment

Dependent Variable - is the variable being tested or measured in the experiment

4.
a.

Non experimental study

grade - independent variable
IQ - quasi independent varible

b.

Experimental study

Survival time = dependent variable
type of diet = independent variable