Question 1

During data collection, it is important to use calibrated instruments that are valid and _______________________.

Accepted Answer

A)  sophisticated 
B)  honored 
C)  reliable 
D)  justified 
A)  sophisticated 
B)  honored 
C)  reliable 
D)  justified

Question 2

Parametric statistics work best in which of the following cases?

Accepted Answer

A)  When the sample is skewed and randomized and small 
B)  When the sample is skewed and randomized and large 
C)  When the sample is adequate and randomized and continuous 
D)  When the sample is large and randomized and adequate 
A)  When the sample is skewed and randomized and small 
B)  When the sample is skewed and randomized and large 
C)  When the sample is adequate and randomized and continuous 
D)  When the sample is large and randomized and adequate

Question 3

A result presented as either a positive or negative relationship is the result of which statistical method?

Accepted Answer

A)  Confidence 
B)  A normal distribution 
C)  Correlation 
D)  Median 
A)  Confidence 
B)  A normal distribution 
C)  Correlation 
D)  Median

Question 4

Which of the following is true concerning independent and dependent variables?

Accepted Answer

A)  The dependent variable is controlled or manipulated by the researcher. 
B)  The independent variable is thought to depend on or to be caused by the dependent variable. 
C)  The independent variable is controlled or manipulated by the researcher and is believed to cause or influence the dependent variable. 
D)  a and c 
A)  The dependent variable is controlled or manipulated by the researcher. 
B)  The independent variable is thought to depend on or to be caused by the dependent variable. 
C)  The independent variable is controlled or manipulated by the researcher and is believed to cause or influence the dependent variable. 
D)  a and c

Question 5

The independent t-test is also known as which of the following?

Accepted Answer

A)  Student's t-test 
B)  Two-sample t-test 
C)  Matched sample 
D)  Student's t-test and two-sample test 
A)  Student's t-test 
B)  Two-sample t-test 
C)  Matched sample 
D)  Student's t-test and two-sample test

Question 6

One of the most commonly used nonparametric statistical tests is which of the following?

Accepted Answer

A)  Chi-square test 
B)  Wilcoxon signed-rank test 
C)  Mann-Whitney U test 
D)  ANOVA 
A)  Chi-square test 
B)  Wilcoxon signed-rank test 
C)  Mann-Whitney U test 
D)  ANOVA

Question 7

A statistical analysis would most likely be found in which of the sections of a primary research manuscript?

Accepted Answer

A)  Abstract 
B)  Materials and methods 
C)  Results 
D)  Discussion 
A)  Abstract 
B)  Materials and methods 
C)  Results 
D)  Discussion

Question 8

A Type I alpha error is which of the following?

Accepted Answer

A)  When the researcher rejects the null hypothesis 
B)  When the researcher accepts the null hypothesis 
A)  When the researcher rejects the null hypothesis 
B)  When the researcher accepts the null hypothesis

Question 9

When the confidence interval is 95%, what is the statistical probability that the observed results or differences between study and control groups are due purely to chance?

Accepted Answer

A)  100% 
B)  95% 
C)  5% 
D)  0% 
A)  100% 
B)  95% 
C)  5% 
D)  0%

Question 10

Which part of the primary research manuscript is usually confined to approximately 200 words and concisely defines the study's purpose, methods, materials, and results?

Accepted Answer

A)  Methods 
B)  Materials 
C)  Abstract 
D)  Results 
A)  Methods 
B)  Materials 
C)  Abstract 
D)  Results

Question 11

Which test allows for comparison among three or more sample means by analyzing interactions between and among the variances of the multiple groups?

Accepted Answer

A)  Independent t-test 
B)  T-test for dependent samples 
C)  Nonparametric inferential statistics 
D)  Analysis of variance (ANOV
A)  
A)  Independent t-test 
B)  T-test for dependent samples 
C)  Nonparametric inferential statistics 
D)  Analysis of variance (ANOV
A)

Question 12

Continuous data use which of the following scales of measurement?

Accepted Answer

A)  Interval and ordinal 
B)  Ordinal and ratio 
C)  Ratio and interval 
D)  a and c 
A)  Interval and ordinal 
B)  Ordinal and ratio 
C)  Ratio and interval 
D)  a and c

Question 13

A perfect positive correlation is shown by ______ and a perfect negative correlation is shown by ______.

Accepted Answer

A)  100; 0 
B)  +1.0; 0 
C)  +1.0; -1.0 
D)  alpha, a; zeta, x 
A)  100; 0 
B)  +1.0; 0 
C)  +1.0; -1.0 
D)  alpha, a; zeta, x

Question 14

Which of the following scales of measurement is the most powerful?

Accepted Answer

A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio 
A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio

Question 15

Which of the following types of sampling provides the most external validity, or the degree to which the results of the study can be generalized to settings other than the one included?

Accepted Answer

A)  Stratified sampling 
B)  Systematic sampling 
C)  Random sampling 
D)  Convenience sampling 
A)  Stratified sampling 
B)  Systematic sampling 
C)  Random sampling 
D)  Convenience sampling

Question 16

Interrater reliability refers to which of the following?

Accepted Answer

A)  The extent that two or more raters obtain the same result when using the same instrument to measure a concept 
B)  The same rater making the same assessment on two or more occasions 
C)  Gathering data that were intended to be collected 
D)  a and c 
A)  The extent that two or more raters obtain the same result when using the same instrument to measure a concept 
B)  The same rater making the same assessment on two or more occasions 
C)  Gathering data that were intended to be collected 
D)  a and c

Question 17

Cancer staging for tumors is an example of which scale of measurement?

Accepted Answer

A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio 
A)  Nominal 
B)  Ordinal 
C)  Interval 
D)  Ratio

Question 18

The independent t-test determines which of the following?

Accepted Answer

A)  Differences in the mean between two dependent groups 
B)  Differences in the mean between two independent groups 
C)  Differences in the median between two dependent groups 
D)  Differences in the median between two independent groups 
A)  Differences in the mean between two dependent groups 
B)  Differences in the mean between two independent groups 
C)  Differences in the median between two dependent groups 
D)  Differences in the median between two independent groups

Question 19

Which of the following is true of the t-test?

Accepted Answer

A)  The t-test is used to analyze the difference between two means. 
B)  The dependent t-test determines differences in the mean between two independent groups. 
C)  When the test is used on a single group that yields pretreatment and posttreatment scores, it is known as a t-test for independent samples. 
D)  a and c 
A)  The t-test is used to analyze the difference between two means. 
B)  The dependent t-test determines differences in the mean between two independent groups. 
C)  When the test is used on a single group that yields pretreatment and posttreatment scores, it is known as a t-test for independent samples. 
D)  a and c

Question 20

Researchers estimate the accuracy of a sample statistic using which of the following?

Accepted Answer

A)  ANOVA 
B)  Chi-square test 
C)  Confidence intervals 
D)  Independent t-test 
A)  ANOVA 
B)  Chi-square test 
C)  Confidence intervals 
D)  Independent t-test

During data collection, it is important to use calibrated instruments that are valid and _______________________.

Parametric statistics work best in which of the following cases?

A result presented as either a positive or negative relationship is the result of which statistical method?

Which of the following is true concerning independent and dependent variables?

The independent t-test is also known as which of the following?

One of the most commonly used nonparametric statistical tests is which of the following?

A statistical analysis would most likely be found in which of the sections of a primary research manuscript?

A Type I alpha error is which of the following?

When the confidence interval is 95%, what is the statistical probability that the observed results or differences between study and control groups are due purely to chance?

Which part of the primary research manuscript is usually confined to approximately 200 words and concisely defines the study's purpose, methods, materials, and results?

Which test allows for comparison among three or more sample means by analyzing interactions between and among the variances of the multiple groups?

Continuous data use which of the following scales of measurement?

A perfect positive correlation is shown by and a perfect negative correlation is shown by .

Which of the following scales of measurement is the most powerful?

Which of the following types of sampling provides the most external validity, or the degree to which the results of the study can be generalized to settings other than the one included?

Interrater reliability refers to which of the following?

Cancer staging for tumors is an example of which scale of measurement?

The independent t-test determines which of the following?

Which of the following is true of the t-test?

Researchers estimate the accuracy of a sample statistic using which of the following?

People's Health: An Introduction

Careers in Public Health for the Dental Hygienist

Assessment for Community Oral Health Program Planning

Measuring Oral Health Status and Progress

Population Health

Oral Health Programs in the Community

Health Promotion and Health Communication

Social Responsibility

Cultural Competence

Service-Learning: Preparing Dental Hygienists for Collaborative Practice

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Exam 7: Applied Research

During data collection, it is important to use calibrated instruments that are valid and _______________________.

Parametric statistics work best in which of the following cases?

A result presented as either a positive or negative relationship is the result of which statistical method?

Which of the following is true concerning independent and dependent variables?

The independent t-test is also known as which of the following?

One of the most commonly used nonparametric statistical tests is which of the following?

A statistical analysis would most likely be found in which of the sections of a primary research manuscript?

A Type I alpha error is which of the following?

When the confidence interval is 95%, what is the statistical probability that the observed results or differences between study and control groups are due purely to chance?

Which part of the primary research manuscript is usually confined to approximately 200 words and concisely defines the study's purpose, methods, materials, and results?

Which test allows for comparison among three or more sample means by analyzing interactions between and among the variances of the multiple groups?

Continuous data use which of the following scales of measurement?

A perfect positive correlation is shown by ______ and a perfect negative correlation is shown by ______.

Which of the following scales of measurement is the most powerful?

Which of the following types of sampling provides the most external validity, or the degree to which the results of the study can be generalized to settings other than the one included?

Interrater reliability refers to which of the following?

Cancer staging for tumors is an example of which scale of measurement?

The independent t-test determines which of the following?

Which of the following is true of the t-test?

Researchers estimate the accuracy of a sample statistic using which of the following?

People's Health: An Introduction

Careers in Public Health for the Dental Hygienist

Assessment for Community Oral Health Program Planning

Measuring Oral Health Status and Progress

Population Health

Oral Health Programs in the Community

Health Promotion and Health Communication

Social Responsibility

Cultural Competence

Service-Learning: Preparing Dental Hygienists for Collaborative Practice

Filters

A perfect positive correlation is shown by and a perfect negative correlation is shown by .