Author Question: About how long does a focus group typically last? a. 30 minutes b. 1.5 hours c. 3 hours d. 8 ... (Read 93 times)

tiffannnnyyyyyy

  • Hero Member
  • *****
  • Posts: 512
About how long does a focus group typically last?
 a. 30 minutes
  b. 1.5 hours
  c. 3 hours
  d. 8 hours

Question 2

Discuss the steps in regression analysis when a researcher's goal is to explain.



Pariscourtney

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

b

Answer to Question 2

1 . Select the appropriate dependent variable and independent variables based on the research questions or the hypotheses derived from them.
2 . Select any relevant control variables available in the data set and include as additional independent variables.
3 . Perform multiple regression with appropriate software.
4 . Interpret overall Model F and R2 . The Model F should be statistically significant and the R2 should be of a size to be practically significant to the researcher. While it is impossible to give a cut-off range for R2 that applies to all situations, values less than 10 percent are often suspected as practically insignificant. If the model is statistically and practically significant, proceed to step 5.
5 . Examine VIFs for potential multicollinearity. If no concerns emerge, proceed.
6 . Interpret individual parameter estimates. Consider the statistical significance of each variable, the valence of the relationship (positive or negative), and the relative size of the relationship as best captured with the standardized regression coefficients (b).
7 . Examine residual plots. If no patterns emerge, and homoscedasticity is evident, the researcher can confidently interpret the resulting parameter coefficients for explanatory meaning.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

For a complete list of videos, visit our video library