Question 1

In the study above what type of statistical test,should Dr.Nan use (if subjects have been matched on age or IQ)?

Accepted Answer

A) Independent t-test 
B) Correlated t-test 
C) One-way ANOVA (between subjects design) 
D) One-way ANOVA (repeated measures) 
E) none of these 
A) Independent t-test 
B) Correlated t-test 
C) One-way ANOVA (between subjects design) 
D) One-way ANOVA (repeated measures) 
E) none of these

Question 2

A consumer psychologist was interested in the influence that the color of the ice cream has on perceived taste.Four hundred subjects were asked to taste 3 different types of vanilla ice cream.Each type was identical in ingredients except they were different shades of yellow.After tasting each ice cream,the subject was asked to rate the ice cream on a scale 1-5 (5 being more favorable: interval scale).What statistical test should be used?

Accepted Answer

A) Chi-Square 
B) Correlated t-test 
C) One-way ANOVA Repeated measures 
D) One-way ANOVA between groups 
E) None of these 
A) Chi-Square 
B) Correlated t-test 
C) One-way ANOVA Repeated measures 
D) One-way ANOVA between groups 
E) None of these

Question 3

An index of the strength of the relationship between the criterion variable and the set of predictor variables is provided by the _____,symbolized by _____.

Accepted Answer

A) squared t;t2 
B) squared multiple correlation coefficient;R2 
C) regression coefficient;á 
D) multiple r;r2 
A) squared t;t2 
B) squared multiple correlation coefficient;R2 
C) regression coefficient;á 
D) multiple r;r2

Question 4

To determine if the correlations among a set of variables can be accounted for by a one or more underlying factors,a _____ should be used.

Accepted Answer

A) log-linear analysis 
B) factor analysis 
C) multiple regression 
D) Spearman correlation 
A) log-linear analysis 
B) factor analysis 
C) multiple regression 
D) Spearman correlation

Question 5

Dr.Nan is studying the effects of Ginseng on recall.He has 2 groups of subjects, (20 subjects in each group).Subjects are given Ginseng or Placebo and then asked to recall a list of words they previously studied.However,to avoid confounds what should Dr.Nan do?

Accepted Answer

A) Counterbalance placebo & Ginseng 
B) Match groups on an IQ test and assign to groups 
C) Randomly assign subjects to groups 
D) All of these 
E) None of these 
A) Counterbalance placebo & Ginseng 
B) Match groups on an IQ test and assign to groups 
C) Randomly assign subjects to groups 
D) All of these 
E) None of these

Question 6

When the independent variable is qualitative and the dependent variable is quantitative,most researchers will NOT use a parametric test in situations where the dependent measure has only two or three values.

Accepted Answer

A) True 
 B)False

Question 7

If the dependent variable is measured on an ordinal level that seriously departs from interval characteristics,then a _____ test is typically used.

Accepted Answer

A) parametric 
B) nonparametric 
A) parametric 
B) nonparametric

Question 8

Dr.Belair is studying the effects of noise exposure on the occurrence of headaches.He exposes 20 subjects to a constant noise in their work environment and asks them to record their headaches.The next week he uses the same subjects without exposing them to noise and measures the number of headaches the subject's record.What statistical test should Dr.Belair use to analyze his data?

Accepted Answer

A) Independent t-test 
B) Correlated t-test 
C) One-way ANOVA (between subjects design) 
D) One-way ANOVA (repeated measures) 
E) None of these 
A) Independent t-test 
B) Correlated t-test 
C) One-way ANOVA (between subjects design) 
D) One-way ANOVA (repeated measures) 
E) None of these

Question 9

A _____ is often used to test whether the groups have different population means on the dependent variables considered jointly.

Accepted Answer

A) multivariate analysis of variance 
B) multiple regression 
C) Hotelling T2 test 
D) factor analysis 
A) multivariate analysis of variance 
B) multiple regression 
C) Hotelling T2 test 
D) factor analysis

Question 10

Which of the following is a first step in determining the appropriate bivariate test?

Accepted Answer

A) Determine the number of subjects needed for a given level of power. 
B) Identify the independent and dependent variables as qualitative or quantitative. 
C) Determine the appropriate alpha level. 
D) Select the appropriate post hoc test. 
A) Determine the number of subjects needed for a given level of power. 
B) Identify the independent and dependent variables as qualitative or quantitative. 
C) Determine the appropriate alpha level. 
D) Select the appropriate post hoc test.

Question 11

_____ will usually be applied to research questions requiring that three or more qualitative variables be simultaneously examined.

Accepted Answer

A) Factor analysis 
B) Multivariate analysis of variance 
C) Log-linear analysis 
D) Multiple regression 
A) Factor analysis 
B) Multivariate analysis of variance 
C) Log-linear analysis 
D) Multiple regression

Question 12

Dr.Sho is measuring the dose related effects of amphetamine on maze running in rats.He gives each rat a dose of 0,10,30 mg of amphetamine at different times and measures how fast the rat completes the maze after each dose.He counterbalances the doses to control for order effects.What statistical test should be used to analyze his data?

Accepted Answer

Dr.Sho should use a

Question 13

When both of the variables under study are quantitative and between-subjects in nature,the appropriate method of data analysis is the

Accepted Answer

A) logistic regression. 
B) Mann Whitney U test. 
C) Spearman rank-order correlation. 
D) none of these 
A) logistic regression. 
B) Mann Whitney U test. 
C) Spearman rank-order correlation. 
D) none of these

Question 14

A correlated t-test can be used to analyze the relationship between 2 variables except when_____.

Accepted Answer

A) the independent variable has 2 levels 
B) the independent variable is between subject in nature 
C) the groups have been matched on some variable 
D) the dependent variable is quantitative in nature 
E) except nothing,all of these are correct 
A) the independent variable has 2 levels 
B) the independent variable is between subject in nature 
C) the groups have been matched on some variable 
D) the dependent variable is quantitative in nature 
E) except nothing,all of these are correct

Question 15

If both variables are qualitative,but one or both are within-subjects in nature,_____ of the statistical tests we have considered can be used.

Accepted Answer

A) all 12 
B) several 
C) only one 
D) none 
A) all 12 
B) several 
C) only one 
D) none

Question 16

If you have a small sample size what type of statistics should you use?

Accepted Answer

A) parametric statistics 
B) nonparametric statistics 
C) descriptive statistics 
D) convert to z-scores 
E) None of these 
A) parametric statistics 
B) nonparametric statistics 
C) descriptive statistics 
D) convert to z-scores 
E) None of these

Question 17

Dr.Johnson sets his alpha level at .05 and uses a directional test,his degrees of freedom is 60 what is his critical t?

Accepted Answer

A) 2.00 
B) 2.021 
C) 1.671 
D) 1.684 
E) none of these 
A) 2.00 
B) 2.021 
C) 1.671 
D) 1.684 
E) none of these

Question 18

Which of the following is used to examine relations among three or more qualitative variables simultaneously?

Accepted Answer

A) factor analysis 
B) log-linear analysis 
C) Bayesian procedure 
D) multivariate analysis of variance 
A) factor analysis 
B) log-linear analysis 
C) Bayesian procedure 
D) multivariate analysis of variance

Question 19

Statistics that allow you to evaluate your data and generalize to the population are called_____.

Accepted Answer

A) inferential statistics 
B) descriptive statistics 
C) reliable 
D) statistical power 
E) None of these 
A) inferential statistics 
B) descriptive statistics 
C) reliable 
D) statistical power 
E) None of these

Question 20

Before a researcher decides what statistical test,he or she should use to analyze their data they should consider the factors below _______.

Accepted Answer

A) The number of independent variables manipulated 
B) Scale of measurement of the dependent variable (quantitative vs.qualitative) 
C) Within or between subject design 
D) The number of subjects used 
E) All of these are correct 
A) The number of independent variables manipulated 
B) Scale of measurement of the dependent variable (quantitative vs.qualitative) 
C) Within or between subject design 
D) The number of subjects used 
E) All of these are correct

In the study above what type of statistical test,should Dr.Nan use (if subjects have been matched on age or IQ)?

An index of the strength of the relationship between the criterion variable and the set of predictor variables is provided by the _,symbolized by _.

To determine if the correlations among a set of variables can be accounted for by a one or more underlying factors,a _____ should be used.

Dr.Nan is studying the effects of Ginseng on recall.He has 2 groups of subjects, (20 subjects in each group).Subjects are given Ginseng or Placebo and then asked to recall a list of words they previously studied.However,to avoid confounds what should Dr.Nan do?

When the independent variable is qualitative and the dependent variable is quantitative,most researchers will NOT use a parametric test in situations where the dependent measure has only two or three values.

If the dependent variable is measured on an ordinal level that seriously departs from interval characteristics,then a _____ test is typically used.

A _____ is often used to test whether the groups have different population means on the dependent variables considered jointly.

Which of the following is a first step in determining the appropriate bivariate test?

_____ will usually be applied to research questions requiring that three or more qualitative variables be simultaneously examined.

When both of the variables under study are quantitative and between-subjects in nature,the appropriate method of data analysis is the

A correlated t-test can be used to analyze the relationship between 2 variables except when_____.

If both variables are qualitative,but one or both are within-subjects in nature,_____ of the statistical tests we have considered can be used.

If you have a small sample size what type of statistics should you use?

Dr.Johnson sets his alpha level at .05 and uses a directional test,his degrees of freedom is 60 what is his critical t?

Which of the following is used to examine relations among three or more qualitative variables simultaneously?

Statistics that allow you to evaluate your data and generalize to the population are called_____.

Before a researcher decides what statistical test,he or she should use to analyze their data they should consider the factors below _______.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Filters

Exam 18: Overview and Extension: Statistical Tests for More Complex Designs

In the study above what type of statistical test,should Dr.Nan use (if subjects have been matched on age or IQ)?

An index of the strength of the relationship between the criterion variable and the set of predictor variables is provided by the _____,symbolized by _____.

To determine if the correlations among a set of variables can be accounted for by a one or more underlying factors,a _____ should be used.

Dr.Nan is studying the effects of Ginseng on recall.He has 2 groups of subjects, (20 subjects in each group).Subjects are given Ginseng or Placebo and then asked to recall a list of words they previously studied.However,to avoid confounds what should Dr.Nan do?

When the independent variable is qualitative and the dependent variable is quantitative,most researchers will NOT use a parametric test in situations where the dependent measure has only two or three values.

If the dependent variable is measured on an ordinal level that seriously departs from interval characteristics,then a _____ test is typically used.

A _____ is often used to test whether the groups have different population means on the dependent variables considered jointly.

Which of the following is a first step in determining the appropriate bivariate test?

_____ will usually be applied to research questions requiring that three or more qualitative variables be simultaneously examined.

When both of the variables under study are quantitative and between-subjects in nature,the appropriate method of data analysis is the

A correlated t-test can be used to analyze the relationship between 2 variables except when_____.

If both variables are qualitative,but one or both are within-subjects in nature,_____ of the statistical tests we have considered can be used.

If you have a small sample size what type of statistics should you use?

Dr.Johnson sets his alpha level at .05 and uses a directional test,his degrees of freedom is 60 what is his critical t?

Which of the following is used to examine relations among three or more qualitative variables simultaneously?

Statistics that allow you to evaluate your data and generalize to the population are called_____.

Before a researcher decides what statistical test,he or she should use to analyze their data they should consider the factors below _______.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Probability

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Filters

An index of the strength of the relationship between the criterion variable and the set of predictor variables is provided by the _,symbolized by _.