Question

Question 16

The study seeks to understand the effect of ethnicity (African American, Hispanic, Asian, Caucasian) and birthweight status ( <2,500 grams versus 2,500 grams) on serum bilirubin levels. What is the dependent variable(s) in this study?

Group of answer choices

All of the above

Ethnicity

Birthweight status

Serum bilirubin levels

Question 17

The degree to which a patient is compliant with a medication regiment is compared between males and females. The gender of the participant is self reported and used to group the participants and the degree of compliance with a medication regiment is measured using a 7 item questionnaire. Which design most closely fits this research study?

Group of answer choices

Mixed samples

Matched samples

Repeated samples

Independent samples

Question 18

A psychologist would like to evaluate the relationship between verbal skills as measured by the Scholastic Achievement Test (SAT) and performance on an anagram task. (Anagrams are words with the letters scrambled. The task is to unscramble the letters and identify the word.) Each subject is given a set of 10 anagrams, and the psychologist records how much time is needed to solve all 10. The anagram times and each subject's SAT score are recorded. What is the design of this research?

Answer 1

Q16 . Dependent variable is : Serum Bilirubin level  

Note : Independent variable are : Ethnicity and the   Birthweight status is , the effect of these are tested on Serum Bilirubin level .

Q17. Design : Independent samples

Note : Here we have two samples : male and female and their compliance with medication is compared . The two samples behave independently .

Q18. Design : Matched samples

Note : Here for each individual we have two observations : SAT score and anagram test performance . Thus the sample is paired observation . Thus design is matched samples .