True or False. When conditioning on theoretically relevant baseline variables (covariates) in addition to the focal regressor, it is advised to exclude the covariates if they are not statistically significant.

Using the information from the regression model with the linear and quadratic term, identify the minimum or maximum value ().  Min/Max =

Interpret the minimum or maximum value from Question 10a. 

What is your overall conclusion regarding the intervention effect on systolic blood pressure at posttest (hint: was there baseline imbalance, which model with or without baseline-by-treatment interaction would you report? was the overall treatment effect significant?)

Was there an effect of the intervention on posttest systolic blood pressure holding baseline systolic blood pressure constant? Report the regression coefficient, t-value, p-value, and confidence interval. For results with more than two decimal places, report answers to the third decimal place.  intervention effect = , t () = , p = , 95% C.I. = [, ]

Was there any evidence of baseline imbalance on systolic blood pressure at pretest? Report the estimated mean difference, t-value, p-value, and confidence interval. For results with more than two decimal places, report answers to the third decimal place.  mean difference = , t () = , p = , 95% C.I. = [, ]

Was there evidence of a baseline by treatment interaction effect of the intervention program on posttest? Report the regression coefficient, t-value, p-value, and confidence interval. For results with more than two decimal places, report answers to the third decimal place.  interaction = , t () = , p = , 95% C.I.  = [, ] 

Report the estimated eduyrssq coefficient, t-value, p-value, and confidence interval. For results with more than two decimal places, report answers to the third decimal place.  eduyrssq = , t () = , p = , 95% C.I. = [, ]

Was there an effect of the intervention on posttest systolic blood pressure holding baseline systolic blood pressure constant? 

Interpret the c’ path. Is the c’ path statistically significant?