explain what is meant by independent and dependent variables in a research study.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Question 1

A research was carried out to study the relationship between inflation rate and unemployment rate.

 (a) Explain what is meant by independent and dependent variables in a research  study.

 (b) Identify the independent and dependent variable for the above study.

Question 2

 

One item on a survey of recent college graduates asks students to indicate if they plan to live within a 15 km radius of the university. Responses to the question include “yes” or “no.” The researcher who gathers these data computes the variance of this variable. Is this appropriate given the measurement scale of this variable? Why?

Question 3

 A physical education teacher is conducting a research related to elementary children’s time spent in physical activity. As part of his research, he collects data from schools related to the number of minutes that they require children to participate in physical education classes. He finds that the most frequently occurring number of minutes required for children to participate in physical education classes is 20 minutes. Which measure of central tendency does this statement represent? Why?

 

 

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