Question 1

In research,the probability that any data score will be within a certain range of a mean value is calculated based on the theory of

Accepted Answer

A)  frequency. 
B)  inference. 
C)  levels of significance. 
D)  the normal curve. 
A)  frequency. 
B)  inference. 
C)  levels of significance. 
D)  the normal curve.

Question 2

A researcher wishes to present data identifying pain scores for a group of subjects using a grouped frequency distribution table.Which is true about using this method?

Accepted Answer

A)  Each group must have equivalent ranges in scores. 
B)  Ranges may overlap from one group to the next. 
C)  Some data may not fit into any group. 
D)  There should be no more than five groups of scores. 
A)  Each group must have equivalent ranges in scores. 
B)  Ranges may overlap from one group to the next. 
C)  Some data may not fit into any group. 
D)  There should be no more than five groups of scores.

Question 3

Which describes an outlier?

Accepted Answer

A)  A data point with a value outside what is predicted by other data points 
B)  Any data point far from the median point,but still within 2 standard deviations from the mean 
C)  A study result that is directly attributable to randomness 
D)  A study score from a subject lost to attrition after the study begins 
A)  A data point with a value outside what is predicted by other data points 
B)  Any data point far from the median point,but still within 2 standard deviations from the mean 
C)  A study result that is directly attributable to randomness 
D)  A study score from a subject lost to attrition after the study begins

Question 4

An appropriate level of significance for nursing research is either

Accepted Answer

A)  0.5 or 0.1. 
B)  0.03 or 0.003. 
C)  0.05 or 0.01. 
D)  0.005 or 0.001. 
A)  0.5 or 0.1. 
B)  0.03 or 0.003. 
C)  0.05 or 0.01. 
D)  0.005 or 0.001.

Question 5

When a researcher concludes that study findings are applicable to the total population,this is an example of

Accepted Answer

A)  generalization. 
B)  inference. 
C)  probability. 
D)  significance. 
A)  generalization. 
B)  inference. 
C)  probability. 
D)  significance.

Question 6

A researcher conducts a study and calculates a mean value of 100 in a set of scores ranging from 90 to 300.Which other measure will the researcher report when describing central tendency in this data set?

Accepted Answer

A)  Median 
B)  Mode 
C)  Range 
D)  Variance 
A)  Median 
B)  Mode 
C)  Range 
D)  Variance

Question 7

In a study comparing weight gain between small-for-gestational-age (SGA)infants who were breastfed and SGA infants who were fed formula,researchers noted increased weight gain in infants who were held more regardless of how they were fed.This finding is an example of a

Accepted Answer

A)  mixed result. 
B)  nonsignificant result. 
C)  serendipitous result. 
D)  significant result. 
A)  mixed result. 
B)  nonsignificant result. 
C)  serendipitous result. 
D)  significant result.

Question 8

A researcher collects scores measuring weight among school-age children who are in an obesity prevention program and notes that several students are morbidly obese with most students falling within or below the 85th percentile for weight.The scores from the morbidly obese children will affect which measure of central tendency the most?

Accepted Answer

A)  Mean 
B)  Median 
C)  Mode 
D)  All the above are affected equally. 
A)  Mean 
B)  Median 
C)  Mode 
D)  All the above are affected equally.

Question 9

A researcher identifies that 2 subjects in an experimental group had scores like those in the control group,while the other 20 experimental group subjects had scores far different from those in the control group.The researcher would consider the scores for the two subjects as

Accepted Answer

A)  control group findings. 
B)  outlier scores. 
C)  unexpected findings. 
D)  ungrouped participants. 
A)  control group findings. 
B)  outlier scores. 
C)  unexpected findings. 
D)  ungrouped participants.

Question 10

In a discussion that includes the analysis of data collected during a pilot study,the researcher discusses the relationships and differences in data sets and makes predictions based on this analysis.The researcher will use which process?

Accepted Answer

A)  Descriptive analysis 
B)  Inferential analysis 
C)  Reliability testing 
D)  Validity testing 
A)  Descriptive analysis 
B)  Inferential analysis 
C)  Reliability testing 
D)  Validity testing

Question 11

A data set is found to approximate a normal curve and has a mean of 72.5 and a standard deviation of 10.8.In which range of numbers will 99% of the scores fall?

Accepted Answer

A)  35.8 - 112.6 
B)  44.6 - 100.4 
C)  51.3 - 93.7 
D)  61.7 - 83.3 
A)  35.8 - 112.6 
B)  44.6 - 100.4 
C)  51.3 - 93.7 
D)  61.7 - 83.3

Question 12

Which is true about a Z-score?

Accepted Answer

A)  It identifies the confidence interval for a group of data. 
B)  It is a method for calculating variance. 
C)  It is a standardized score used when data measures use different scales. 
D)  It represents the median data point in any set of data. 
A)  It identifies the confidence interval for a group of data. 
B)  It is a method for calculating variance. 
C)  It is a standardized score used when data measures use different scales. 
D)  It represents the median data point in any set of data.

Question 13

When a data set has a normal distribution curve,which statement is true about the data?

Accepted Answer

A)  The mean is the lowest value. 
B)  The median is the highest value. 
C)  The mode is the central value. 
D)  The mode,median,and mean are equal values. 
A)  The mean is the lowest value. 
B)  The median is the highest value. 
C)  The mode is the central value. 
D)  The mode,median,and mean are equal values.

Question 14

A researcher develops a study to examine the effects of Keep Yourself Safe Screening (KYSS)on the incidence of intimate partner violence (IPV).The study level of significance is 0.05.The null hypothesis,that KYSS will have no effect on IPV,is found to be true.When reviewing the study for type II errors,the reviewer understands that

Accepted Answer

A)  a level of significance of 0.01 would decrease the risk of a type II error. 
B)  the level of significance does not affect the chance of a type II error. 
C)  there is a 5% chance that the null hypothesis is false. 
D)  there is a 5% chance that the null hypothesis is true. 
A)  a level of significance of 0.01 would decrease the risk of a type II error. 
B)  the level of significance does not affect the chance of a type II error. 
C)  there is a 5% chance that the null hypothesis is false. 
D)  there is a 5% chance that the null hypothesis is true.

Question 15

Which is true about a correlational analysis technique?

Accepted Answer

A)  It is most desirable for small samples with homogeneous scores. 
B)  It is used to determine cause and effect among sets of variables. 
C)  It measures the relationship among variables. 
D)  It usually involves comparing data from two subjects. 
A)  It is most desirable for small samples with homogeneous scores. 
B)  It is used to determine cause and effect among sets of variables. 
C)  It measures the relationship among variables. 
D)  It usually involves comparing data from two subjects.

Question 16

Which of the following is not one of the components of power analysis?

Accepted Answer

A)  Effect size 
B)  Error type 
C)  Power 
D)  Sample size 
A)  Effect size 
B)  Error type 
C)  Power 
D)  Sample size

Question 17

A researcher will present demographic data about ethnicity,gender,and diagnoses about a study population using which method?

Accepted Answer

A)  Continuous frequency distribution 
B)  Grouped frequency distribution 
C)  Percentage frequency distribution 
D)  Ungrouped frequency distribution 
A)  Continuous frequency distribution 
B)  Grouped frequency distribution 
C)  Percentage frequency distribution 
D)  Ungrouped frequency distribution

Question 18

In a data set that has a normal distribution what percent of scores will be within two standard deviations above or below the mean?

Accepted Answer

A)  34 
B)  68 
C)  95 
D)  99 
A)  34 
B)  68 
C)  95 
D)  99

Question 19

The nurse researcher understands that nonparametric analyses are conducted if the variables are measured at what two levels?

Accepted Answer

A)  Nominal and ordinal 
B)  Nominal and interval 
C)  Nominal and ratio 
D)  Ordinal and ratio 
A)  Nominal and ordinal 
B)  Nominal and interval 
C)  Nominal and ratio 
D)  Ordinal and ratio

Question 20

A researcher wishes to display scores representing the relationship between two variables.Which will the researcher use?

Accepted Answer

A)  Grouped data table 
B)  Pie chart 
C)  Scatterplots 
D)  Z-score 
A)  Grouped data table 
B)  Pie chart 
C)  Scatterplots 
D)  Z-score

In research,the probability that any data score will be within a certain range of a mean value is calculated based on the theory of

A researcher wishes to present data identifying pain scores for a group of subjects using a grouped frequency distribution table.Which is true about using this method?

Which describes an outlier?

An appropriate level of significance for nursing research is either

When a researcher concludes that study findings are applicable to the total population,this is an example of

A researcher conducts a study and calculates a mean value of 100 in a set of scores ranging from 90 to 300.Which other measure will the researcher report when describing central tendency in this data set?

In a study comparing weight gain between small-for-gestational-age (SGA)infants who were breastfed and SGA infants who were fed formula,researchers noted increased weight gain in infants who were held more regardless of how they were fed.This finding is an example of a

A researcher identifies that 2 subjects in an experimental group had scores like those in the control group,while the other 20 experimental group subjects had scores far different from those in the control group.The researcher would consider the scores for the two subjects as

In a discussion that includes the analysis of data collected during a pilot study,the researcher discusses the relationships and differences in data sets and makes predictions based on this analysis.The researcher will use which process?

A data set is found to approximate a normal curve and has a mean of 72.5 and a standard deviation of 10.8.In which range of numbers will 99% of the scores fall?

Which is true about a Z-score?

When a data set has a normal distribution curve,which statement is true about the data?

Which is true about a correlational analysis technique?

Which of the following is not one of the components of power analysis?

A researcher will present demographic data about ethnicity,gender,and diagnoses about a study population using which method?

In a data set that has a normal distribution what percent of scores will be within two standard deviations above or below the mean?

The nurse researcher understands that nonparametric analyses are conducted if the variables are measured at what two levels?

A researcher wishes to display scores representing the relationship between two variables.Which will the researcher use?

Introduction to Nursing Research and Its Importance in Building an Evidence-Based Practice

Introduction to Quantitative Research

Introduction to Qualitative Research

Examining Ethics in Nursing Research

Examining Research Problems, Purposes, and Hypotheses

Understanding and Critically Appraising the Literature Review

Understanding Theory and Research Frameworks

Clarifying Quantitative Research Designs

Examining Populations and Samples in Research

Clarifying Measurement and Data Collection in Quantitative Research

Critical Appraisal of Quantitative and Qualitative Research for Nursing Practice

Building an Evidence-Based Nursing Practice

Introduction to Additional Research Methodologies in Nursing: Mixed Methods and Outcomes Research

Filters

Exam 11: Understanding Statistics in Research

In research,the probability that any data score will be within a certain range of a mean value is calculated based on the theory of

A researcher wishes to present data identifying pain scores for a group of subjects using a grouped frequency distribution table.Which is true about using this method?

Which describes an outlier?

An appropriate level of significance for nursing research is either

When a researcher concludes that study findings are applicable to the total population,this is an example of

A researcher conducts a study and calculates a mean value of 100 in a set of scores ranging from 90 to 300.Which other measure will the researcher report when describing central tendency in this data set?

In a study comparing weight gain between small-for-gestational-age (SGA)infants who were breastfed and SGA infants who were fed formula,researchers noted increased weight gain in infants who were held more regardless of how they were fed.This finding is an example of a

A researcher identifies that 2 subjects in an experimental group had scores like those in the control group,while the other 20 experimental group subjects had scores far different from those in the control group.The researcher would consider the scores for the two subjects as

In a discussion that includes the analysis of data collected during a pilot study,the researcher discusses the relationships and differences in data sets and makes predictions based on this analysis.The researcher will use which process?

A data set is found to approximate a normal curve and has a mean of 72.5 and a standard deviation of 10.8.In which range of numbers will 99% of the scores fall?

Which is true about a Z-score?

When a data set has a normal distribution curve,which statement is true about the data?

Which is true about a correlational analysis technique?

Which of the following is not one of the components of power analysis?

A researcher will present demographic data about ethnicity,gender,and diagnoses about a study population using which method?

In a data set that has a normal distribution what percent of scores will be within two standard deviations above or below the mean?

The nurse researcher understands that nonparametric analyses are conducted if the variables are measured at what two levels?

A researcher wishes to display scores representing the relationship between two variables.Which will the researcher use?

Introduction to Nursing Research and Its Importance in Building an Evidence-Based Practice

Introduction to Quantitative Research

Introduction to Qualitative Research

Examining Ethics in Nursing Research

Examining Research Problems, Purposes, and Hypotheses

Understanding and Critically Appraising the Literature Review

Understanding Theory and Research Frameworks

Clarifying Quantitative Research Designs

Examining Populations and Samples in Research

Clarifying Measurement and Data Collection in Quantitative Research

Critical Appraisal of Quantitative and Qualitative Research for Nursing Practice

Building an Evidence-Based Nursing Practice

Introduction to Additional Research Methodologies in Nursing: Mixed Methods and Outcomes Research

Filters