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Embry-Riddle Aeronautical University - RSCH 202 1)With what instrument could the validity of a scale (a set of questions) best be determined?             2

Statistics Mar 25, 2021

Embry-Riddle Aeronautical University - RSCH 202

1)With what instrument could the validity of a scale (a set of questions) best be determined?

       

 

 

2. A researcher wants to give an overview of the characteristics of the respondents in his sample. How could this researcher best provide insight in the gender of the respondents?

 

3. Computing the Cronbach's alpha is the way to check if the:

4. What is the appropriate method to test if having a mobile phone is related to gender?

 

5. To be able to conduct a t-test it is important:

 

 

6. Regression analysis is used when the dependent variable is nominal or ordinal in nature.

 

 

7. When you want to test if the average score of an exam significantly differs from 7.3 (the average score of last year), an independent samples t-test is most appropriate.

 

 

8. The objective of regression analysis is to explain a dependent variable based on 1 or more independent variables.

9. Cronbach's alpha indicates to what extent scale items are correlated to each other?

 

 

10. An overview of a variable on nominal level can be given by a pie chart.

 

11. The closer the Cronbach's alpha is to 1, the higher the reliability of a scale.

 

 

12. Regression analysis is used when the independent variable is nominal or ordinal in nature.

 

 

13. Multiple regression analysis measures the effect of an independent variable on the dependent variable, while the other independent variables are held constant.

 

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