Question 1

A researcher computes a null model then a random intercept fixed slope model. The researcher finds a BIC value of 5. Which one of the following is suggested?

Accepted Answer

A)  weak evidence 
B)  positive evidence 
C)  strong evidence 
D)  very strong evidence 
A)  weak evidence 
B)  positive evidence 
C)  strong evidence 
D)  very strong evidence B

Question 2

Which one of the following should guide the choice in the centering method selected?

Accepted Answer

A)  the proportion of variation in the outcome that is between groups 
B)  the research question 
C)  the sample size at the highest level 
D)  the sample size at the lowest level 
A)  the proportion of variation in the outcome that is between groups 
B)  the research question 
C)  the sample size at the highest level 
D)  the sample size at the lowest level B

Question 3

Which one of the following is the most important factor to consider when detecting cross-level interaction effects?

Accepted Answer

A)  average level 1 sample size 
B)  average level 2 sample size 
C)  variability of the level 1 slope coefficients 
D)  within-group sample size 
A)  average level 1 sample size 
B)  average level 2 sample size 
C)  variability of the level 1 slope coefficients 
D)  within-group sample size D

Question 4

At which one of the following is sample size most important?

Accepted Answer

A)  all levels 
B)  highest level 
C)  level 1 
D)  within-groups 
A)  all levels 
B)  highest level 
C)  level 1 
D)  within-groups

Question 5

A researcher wishes to determine the reduction of within-group variability after adding predictors. Which one of the following should the researcher compute?

Accepted Answer

A)  Effect sizes for the between-group gamma coefficients for the intercepts 
B)  Effect sizes for the individual beta coefficients within-groups 
C)  proportion reduction in variance explained between-groups 
D)  proportion reduction in variance explained within-groups 
A)  Effect sizes for the between-group gamma coefficients for the intercepts 
B)  Effect sizes for the individual beta coefficients within-groups 
C)  proportion reduction in variance explained between-groups 
D)  proportion reduction in variance explained within-groups

Question 6

Which one of the following centering methods is most appropriate when the researcher wishes to examine the extent to which there is a cross-level interaction between a group and a unit-level predictor?

Accepted Answer

A)  Group mean centering 
B)  Grand mean centering 
C)  Either group or grand mean centering 
D)  Neither group nor grand mean centering 
A)  Group mean centering 
B)  Grand mean centering 
C)  Either group or grand mean centering 
D)  Neither group nor grand mean centering

Question 7

A researcher finds an intraclass correlation coefficient of .10. Which one of the following reflects a correct interpretation of this?

Accepted Answer

A)  The ICC is statistically significant at an alpha of .50 
B)  The probability of rejecting the null hypothesis when it is true is 10% 
C)  The proportion of variation in the outcome that is between groups is 10% 
D)  The within-group variation in the outcome is 10% 
A)  The ICC is statistically significant at an alpha of .50 
B)  The probability of rejecting the null hypothesis when it is true is 10% 
C)  The proportion of variation in the outcome that is between groups is 10% 
D)  The within-group variation in the outcome is 10%

Question 8

A researcher examines the influence of self-efficacy on academic performance for students within classrooms. Which one of the following is interpreted from a random slope effect in this model?

Accepted Answer

A)  the effects of self-efficacy on academic performance vary across classrooms 
B)  students that have high self-efficacy have high academic performance 
C)  there is variability in academic performance between students 
D)  there is variability within students in self-efficacy 
A)  the effects of self-efficacy on academic performance vary across classrooms 
B)  students that have high self-efficacy have high academic performance 
C)  there is variability in academic performance between students 
D)  there is variability within students in self-efficacy

Question 9

A researcher finds statistically significant results for a deviance test. Which one of the following is suggested?

Accepted Answer

A)  Better model fit is evidenced for the more parameterized model 
B)  Evidence to favor model 1 over model 2 
C)  There is sufficient power 
D)  There is statistically significant variation within groups 
A)  Better model fit is evidenced for the more parameterized model 
B)  Evidence to favor model 1 over model 2 
C)  There is sufficient power 
D)  There is statistically significant variation within groups

Question 10

A researcher examines the influence of self-efficacy on academic performance for students within classrooms. The results report an alpha of .01 and a p value of .05 for the slope variance for self-efficacy. Which one of the following is a correct interpretation of this?

Accepted Answer

A)  The proportion of variation in academic performance that is between classrooms is 5% 
B)  The proportion of variance in the self-efficacy that is between classrooms is 1% 
C)  There is statistically significant variation across classrooms in the relationship between self-efficacy and academic performance 
D)  There is statistically significant variation within schools in academic performance as it relates to self-efficacy 
A)  The proportion of variation in academic performance that is between classrooms is 5% 
B)  The proportion of variance in the self-efficacy that is between classrooms is 1% 
C)  There is statistically significant variation across classrooms in the relationship between self-efficacy and academic performance 
D)  There is statistically significant variation within schools in academic performance as it relates to self-efficacy

A researcher computes a null model then a random intercept fixed slope model. The researcher finds a BIC value of 5. Which one of the following is suggested?

Which one of the following should guide the choice in the centering method selected?

Which one of the following is the most important factor to consider when detecting cross-level interaction effects?

At which one of the following is sample size most important?

A researcher wishes to determine the reduction of within-group variability after adding predictors. Which one of the following should the researcher compute?

Which one of the following centering methods is most appropriate when the researcher wishes to examine the extent to which there is a cross-level interaction between a group and a unit-level predictor?

A researcher finds an intraclass correlation coefficient of .10. Which one of the following reflects a correct interpretation of this?

A researcher examines the influence of self-efficacy on academic performance for students within classrooms. Which one of the following is interpreted from a random slope effect in this model?

A researcher finds statistically significant results for a deviance test. Which one of the following is suggested?

A researcher examines the influence of self-efficacy on academic performance for students within classrooms. The results report an alpha of .01 and a p value of .05 for the slope variance for self-efficacy. Which one of the following is a correct interpretation of this?

Multivariate Statistics

Univariate and Bivariate Statistics Review

Data Screening

Multiple Linear Regression

Logistic Regression

Multivariate Analysis of Variance: Single Factor, Factorial, and Repeated Measures Designs

Discriminant Analysis

Cluster Analysis

Exploratory Factor Analysis

Path Analysis, Confirmatory Factor Analysis, and Structural Equation Modeling

Propensity Score Analysis

Filters

Exam 11: Multilevel Linear Modeling

A researcher computes a null model then a random intercept fixed slope model. The researcher finds a BIC value of 5. Which one of the following is suggested?

Which one of the following should guide the choice in the centering method selected?

Which one of the following is the most important factor to consider when detecting cross-level interaction effects?

At which one of the following is sample size most important?

A researcher wishes to determine the reduction of within-group variability after adding predictors. Which one of the following should the researcher compute?

Which one of the following centering methods is most appropriate when the researcher wishes to examine the extent to which there is a cross-level interaction between a group and a unit-level predictor?

A researcher finds an intraclass correlation coefficient of .10. Which one of the following reflects a correct interpretation of this?

A researcher examines the influence of self-efficacy on academic performance for students within classrooms. Which one of the following is interpreted from a random slope effect in this model?

A researcher finds statistically significant results for a deviance test. Which one of the following is suggested?

A researcher examines the influence of self-efficacy on academic performance for students within classrooms. The results report an alpha of .01 and a p value of .05 for the slope variance for self-efficacy. Which one of the following is a correct interpretation of this?

Multivariate Statistics

Univariate and Bivariate Statistics Review

Data Screening

Multiple Linear Regression

Logistic Regression

Multivariate Analysis of Variance: Single Factor, Factorial, and Repeated Measures Designs

Discriminant Analysis

Cluster Analysis

Exploratory Factor Analysis

Path Analysis, Confirmatory Factor Analysis, and Structural Equation Modeling

Propensity Score Analysis

Filters