Question 1

When data are measured over time,an autoregressive structure (AR1)cannot be assumed.

Accepted Answer

A) True 
 B)False  False

Question 2

When data are organized in hierarchies,what are the terms used to describe variables within other variables?

Accepted Answer

A) Nestled or bunched 
B) Caught or grouped 
C) Wedged or collected 
D) Clustered or nested 
A) Nestled or bunched 
B) Caught or grouped 
C) Wedged or collected 
D) Clustered or nested D

Question 3

A polynomial can be defined by a simple power function.

Accepted Answer

A) True 
 B)False  True

Question 4

The overall fit of a multilevel model can be tested using a chi-square likelihood ratio test.

Accepted Answer

A) True 
 B)False

Question 5

Multilevel models where changes over time in an outcome are modelled using potential growth patterns,such as linear or quadratic,are called what?

Accepted Answer

A) Simple models 
B) Regression models 
C) High models 
D) Growth models 
A) Simple models 
B) Regression models 
C) High models 
D) Growth models

Question 6

SPSS produces four adjusted versions of the log-likelihood value.True or false?

Accepted Answer

A) True 
 B)False

Question 7

Homoscedasticity is also known as what?

Accepted Answer

A) Linearity 
B) Normality 
C) Effect size 
D) Homogeneity of variance 
A) Linearity 
B) Normality 
C) Effect size 
D) Homogeneity of variance

Question 8

In multilevel models,why can centring be useful?

Accepted Answer

A) To combat multicollinearity between predictor variables 
B) To reject the null hypothesis early on 
C) To improve the strength of the analysis 
D) To hide errors 
A) To combat multicollinearity between predictor variables 
B) To reject the null hypothesis early on 
C) To improve the strength of the analysis 
D) To hide errors

Question 9

Take a given variable,mark each score and subtract the mean of all scores for that variable.This is an example of?

Accepted Answer

A) Grand mean centring 
B) Group mean centring 
C) Mean analysis 
D) None of the above 
A) Grand mean centring 
B) Group mean centring 
C) Mean analysis 
D) None of the above

Question 10

In SPSS,how are growth curves entered?

Accepted Answer

A) Manually 
B) Automatically 
C) It is not possible to put growth curves in SPSS. 
D) In secondary analysis 
A) Manually 
B) Automatically 
C) It is not possible to put growth curves in SPSS. 
D) In secondary analysis

Question 11

What is the intraclass correlation coefficient (ICC)a good gauge of?

Accepted Answer

A) used when quantitative measurements are made on groups of units 
B) used when quantitative measurements are made on single units 
C) used when qualitative measurements are made on groups of units 
D) used when qualitative measurements are made on single units 
A) used when quantitative measurements are made on groups of units 
B) used when quantitative measurements are made on single units 
C) used when qualitative measurements are made on groups of units 
D) used when qualitative measurements are made on single units

Question 12

How can the Information Criteria table be used in multilevel modelling?

Accepted Answer

A) To test the significance of the covariant 
B) To assess the overall fit of the model 
C) To reduce the random effects of the model 
D) To determine the regression coefficient for each effect 
A) To test the significance of the covariant 
B) To assess the overall fit of the model 
C) To reduce the random effects of the model 
D) To determine the regression coefficient for each effect

Question 13

Homoscedasticity is an assumption of multilevel modelling.What is assumed?

Accepted Answer

A) That there is a rectilinear relationship between variables 
B) That the error terms of each level of the model are normally distributed 
C) Independence 
D) Equality of population variances 
A) That there is a rectilinear relationship between variables 
B) That the error terms of each level of the model are normally distributed 
C) Independence 
D) Equality of population variances

Question 14

In the Sig.column of the table of Type III Tests of Fixed Effects,what is the maximum value for the effect to be considered significant?

Accepted Answer

A) 1.00 
B) .75 
C) .10 
D) .05 
A) 1.00 
B) .75 
C) .10 
D) .05

Question 15

Intraclass correlation can be used to estimate what?

Accepted Answer

A) Dependency between scores 
B) Error scores 
C) Standard deviation 
D) Significance of the data 
A) Dependency between scores 
B) Error scores 
C) Standard deviation 
D) Significance of the data

Question 16

Given that different teachers have different personalities and ways of teaching their students,the classroom in which an experiment is conducted is what type of variable?

Accepted Answer

A) Standard variable 
B) Random variable 
C) Contextual variable 
D) Simple variable 
A) Standard variable 
B) Random variable 
C) Contextual variable 
D) Simple variable

Question 17

A cubic trend growth curve is also known as?

Accepted Answer

A) A first-order polynomial 
B) A second-order polynomial 
C) A third-order polynomial 
D) None of the above 
A) A first-order polynomial 
B) A second-order polynomial 
C) A third-order polynomial 
D) None of the above

Question 18

An effect is random if the experiment contains what?

Accepted Answer

A) All possible treatment conditions that a researcher is interested in 
B) None of the possible treatment conditions that a researcher is interested in 
C) A random sample of possible treatment conditions that a researcher is interested in 
D) A fixed number and percentage of possible treatment conditions that a researcher is interested in 
A) All possible treatment conditions that a researcher is interested in 
B) None of the possible treatment conditions that a researcher is interested in 
C) A random sample of possible treatment conditions that a researcher is interested in 
D) A fixed number and percentage of possible treatment conditions that a researcher is interested in

Question 19

AICC is the acronym used for which version of the log-likelihood value?

Accepted Answer

A) Akaike's information criterion 
B) Hurvich and Tsai's criterion 
C) Bozdogan's criterion 
D) Schwarz's Bayesian criterion 
A) Akaike's information criterion 
B) Hurvich and Tsai's criterion 
C) Bozdogan's criterion 
D) Schwarz's Bayesian criterion

Question 20

A fixed effect is when all possible treatment conditions that you are interested in as a researcher are present in the experiment.

Accepted Answer

A) True 
 B)False

Exam 21: Multilevel Linear Models

When data are measured over time,an autoregressive structure (AR1)cannot be assumed.

When data are organized in hierarchies,what are the terms used to describe variables within other variables?

A polynomial can be defined by a simple power function.

The overall fit of a multilevel model can be tested using a chi-square likelihood ratio test.

Multilevel models where changes over time in an outcome are modelled using potential growth patterns,such as linear or quadratic,are called what?

SPSS produces four adjusted versions of the log-likelihood value.True or false?

Homoscedasticity is also known as what?

In multilevel models,why can centring be useful?

Take a given variable,mark each score and subtract the mean of all scores for that variable.This is an example of?

In SPSS,how are growth curves entered?

What is the intraclass correlation coefficient (ICC)a good gauge of?

How can the Information Criteria table be used in multilevel modelling?

Homoscedasticity is an assumption of multilevel modelling.What is assumed?

In the Sig.column of the table of Type III Tests of Fixed Effects,what is the maximum value for the effect to be considered significant?

Intraclass correlation can be used to estimate what?

Given that different teachers have different personalities and ways of teaching their students,the classroom in which an experiment is conducted is what type of variable?

A cubic trend growth curve is also known as?

An effect is random if the experiment contains what?

AICC is the acronym used for which version of the log-likelihood value?

A fixed effect is when all possible treatment conditions that you are interested in as a researcher are present in the experiment.

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Comparing

Moderation,mediation and Multicategory Predictors

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