IBUS 620 Understanding the Regression Coefficients Table.

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Consider the following table of regression coefficients, This table contains the results of four separate regression models, each using a different dependent variable. Each DV is a different independent measure of performance. Answer the 8 questions below

Problem Set 3 – IBUS 620 Understanding the Regression Coefficients Table. Consider the following table of regression coefficients. For context, you may be helped by reading the JABS article (available for PDF download on iLearn). This table contains the results of four separate regression models, each using a different dependent variable. Each DV is a different independent measure of performance. Questions: 1. Write out the regression equation for Model 1 in long form, using the first four rows of independent variables, the second four rows (control variables) and the constant. Include both significant and non-significant independent variables. (20 points) 2. For Model 2, what is the name of the dependent variable? (10 points) 3. Does Model 3 explain the variation in the data better than a model consisting solely of a constant? (10 Points) a. Explain what you looked at in the table to determine this. (10 Points) 4. In Model 3, which independent variable(s) are statistically significant at a level of p≤0.005? (10 points) 5. Looking across all models, and at the first four independent variables listed only, which indep. var. is significant across the most models? (10 points) 6. One independent variable is “near-significant.” a. Which variable is this? (10 points) b. In what model does this occur? (10 points) c. How do you interpret the fact that there is a near-significant independent variable (how would you discuss this in a paper you were writing)? 1 Paragraph maxsimum response length. (10 points). EXTRA CREDIT: 7. Which Model explains the highest percentage of variation in the data AND explains the variation in the data better than a model consisting solely of a constant?? (10 points) a. In the above answer, why did you choose this model? (10 points) 8. Which Model does NOT explain the variation in the data better than a model consisting solely of a constant? (10 points) a. How did you determine this (what in the table tells you this?) (10 Points). Total possible possible raw score = 140/100, including extra credit. Final score is calculated as Raw Score/10.

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proggerardo
School: UC Berkeley

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Problem Set 3 – IBUS 620 Understanding the Regression Coefficients Table.
Consider the following table of regression coefficients. For context, you may be helped by reading
the JABS article (available for PDF download on iLearn). This table contains the results of four
separate regression models, each using a different dependent variable. Each DV is a different
independent measure of performance.
Questions:
1. Write out the regression equation for Model 1 in long form, using the first four rows of
independent variables, the second four rows (control variables) and the constant. Include
both significant and non-significant independent variables. (20 points)
𝒔𝒂𝒕𝒊𝒔𝒇𝒂𝒄𝒕 − 𝒑𝒆𝒓𝒇𝒐𝒓𝒎 = 𝑲𝟏 (𝒐𝒃𝒋𝒆𝒄𝒕𝒊𝒗𝒆 − 𝒄𝒐𝒏𝒈𝒓𝒖𝒆𝒏𝒄𝒆)
+ 𝑲𝟐 (𝒐𝒓𝒈𝒂𝒏𝒊𝒛𝒂𝒕𝒊𝒐𝒏 − 𝒄𝒖𝒍𝒕𝒓)
+ 𝑲𝟑 (𝒏𝒂𝒕𝒊𝒐𝒏𝒂𝒍𝒄𝒖𝒍𝒕𝒓)
+ 𝑲𝟒 (𝒂𝒈𝒓𝒆𝒆𝒉𝒊𝒓𝒆𝒔)
+ 𝑲𝟓 (𝒃𝒂𝒍𝒂𝒏𝒄𝒆𝒐𝒇𝒄𝒐𝒏𝒕...

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