Parwise correlation of all the independent variables is used to detect: a) Heter
ID: 3250231 • Letter: P
Question
Parwise correlation of all the independent variables is used to detect: a) Heteroscedasticity b) Homoscedasticity c) Homogeneity d) Multicolinearity e) Symmetry
Your friendly computer tells you that your crosstab contains to many empty cells. Which of the following should be done: a) some categories of the variables involved should be "collapsed" b) disregard the message c) decrease the sample by randomly selecting a certain percentage of the "cases" d) use regression analysis instead of Chi-square e) any of the above
What type of analysis is appropriate If all variables involved are measured on a nominal scale: a) standard linear regression b) analysis of variance c) discriminant analysis d) Chi-square e) nominal gradient truncation
Which of the following statistical techniques is most appropriate for measurement of interactions between independent variables: a) analysis of variance (Anova) b) linear regression c) canonical correlation d) all of the above e) none of the above
Which of the following statistical techniques could be utilized, if the dependent variable is measured on an interval scale, and all the independent variables are measured on a nominal scale: a) Chi-squared b) Analysis of variance c) standard linear regression d) factor analysis e) any of the above
Causal inferences could be drawn from multivariate linear regression analysis when: a) the sample size is large enough b) data comes from an experiment c) all variables are interval scaled d) survey data is collected at different points in time longitudinal study) e) none of the above
Explanation / Answer
Parwise correlation of all the independent variables is used to detect: Heteroscedasticity.
Your friendly computer tells you that your crosstab contains to many empty cells. Which of the following should be done: some categories of the variables involved should be "collapsed"
What type of analysis is appropriate If all variables involved are measured on a nominal scale: a) standard linear regression Chi Square.
Which of the following statistical techniques is most appropriate for measurement of interactions between independent variables: analysis of variance (Anova)