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statistics for nursing a practical approach
Statistics For Nursing A Practical Approach 3rd Edition Elizabeth Heavey - Solutions
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.If the study measures neuropathy symptoms on a scale of 1–10, what level of measurement is this variable?
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.If the study measures neuropathy symptoms as mild, moderate, or severe, what level of measurement is this variable?
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.The study anticipates subjects treated with drug A will have substantial improvement in their neuropathy symptoms. What effect size is anticipated, and what does that mean in terms
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.The researcher knows of a validated survey instrument to measure neuropathy symptoms, but it has 500 questions and requires a college-level reading ability to understand. These
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.The 10-question survey instrument used to measure neuropathy symptoms in this study was compared to a previously validated 500-question version, and similar results were obtained.
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.This large-scale trial will have measurements collected by 14 data collectors at three sites. Discuss an aspect of reliability that will be critical to assess and thus avoid
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.The neuropathy survey has a 96% sensitivity. What does this mean?
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.In the following table, fill in the researcher’s decision about the null hypothesis at the indicated alpha level as well as what potential error it could be if this decision is
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.This study, which examines treating patients with drug A and neuropathy symptoms, utilizes an alpha of 0.05 and reports a p-value of 0.30. What should the researcher decide about the
A study anticipates that subjects treated with drug A will have substantial improvement in their neuropathy symptoms.If this decision in review question 28 about the null hypothesis is incorrect, what type of error could it be?
If a researcher reports that the abuse of dextromethorphan is not related to age but is incorrect about this conclusion, what type of error is this?
A researcher reports that exposure to fentanyl patches is associated with death in children. What does this mean about the relationship between the p-value and the alpha in the study? If this conclusion is an error, what type would it be?
A researcher reports a statistically significant association between taking anticoagulants and bruising. What do you know about the sample size?
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.What level of measurement is gender? Is it continuous or categorical? TABLE 8-5 No
The researchers are trying to detect a small effect size. What do you know about the necessary sample size?
Researchers report that there is no difference in appetite for those taking Byetta and those who are not. However, the sample size was small, and the results are incorrect. This is what type of error?
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.What level of measurement is sports participation? Is it qualitative or quantitative? TABLE
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.What measure of central tendency can you determine for sports participation? What is the
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.If the whole school has 800 students and the ninth grade has 250 students, what percentage of
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.Write an appropriate null hypothesis for this study. TABLE 8-5 No sports Sports
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.Write two alternative hypotheses that correspond to your null hypothesis. TABLE 8-5 No
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.What type of error might you be making? TABLE 8-5 No sports Sports participation Total Gender
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.If you wanted to make the chance of this type of error smaller, what could you do? TABLE
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.Why is the chi-square test appropriate for this study? TABLE 8-5 No sports Sports
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
After the school instituted a new aerobics program, data was gathered in a follow-up survey administered in all the grades. The collected information is shown in Table 8-6.If the entire school has a population of 800, what percentage of the students are included in your sample? TABLE 8-6 No
After the school instituted a new aerobics program, data was gathered in a follow-up survey administered in all the grades. The collected information is shown in Table 8-6.Is gender related to sports participation in this follow-up survey? If so, which gender is more likely to participate? How many
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
After the school instituted a new aerobics program, data was gathered in a follow-up survey administered in all the grades. The collected information is shown in Table 8-6.Imagine you are the editor of the journal in which an article was submitted for review using a chi-square test to determine
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.What should you conclude about your null hypothesis? TABLE 8-5 No sports Sports
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
A study is completed to examine the relationship between gender and sports participation. It is conducted by randomly surveying ninth-graders at Smith High School. The collected data is shown in Table 8-5.Calculate the chi-square from the 2 × 2 table in Table 8-5. The p-value is < 0.005. Is
You are working in a school-based health center and have developed a new screening tool for suicide risk among adolescent athletes. The pilot of your new screening tool reports that female athletes are more likely to attempt suicide compared with male athletes. These results agree with other
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
You correct the copying problem and readminister the screening tool at another school. After 1 year of follow-up, you get the results shown in Table 8-7. Explain what each box means in plain English. Screen positive Screen negative Total Attempted Suicide 20 10 30 No Suicide
You administer your new screening tool in your health clinic but find the results confusing. After reviewing your screening tool, you realize that the following mistake was made: When the survey was administered to three of the male sports teams, it was printed on only one side of the paper and
It is really helpful to start reading professional research articles to see how these concepts are used in actual study scenarios. Give it a try in this article, where the researchers examined the relationship between patients’ perception about coffee consumption and distress symptoms in patients
What is the sensitivity of your screen? What does this mean in plain English?
What is the specificity of your screen? What does this mean in plain English?
What is the positive predictive value (PPV) of your screen? What does this mean in plain English?
What is the negative predictive value (NPV) of your screen? What does this mean in plain English?
“From the Statistician” Review Question: Would you do the analysis differently if no women were happily married to male supermodels in the “From the Statistician” feature in this chapter?
What is the prevalence of suicide attempts in this sample?
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of patients with oropharyngeal cancer, the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer. The study has an alpha of 0.05 and a p = 0.01.The presence of leukoplakia or erythroplakia in the oropharynx for more than 2
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of 100 patients with biopsy-confirmed breast cancer, a study examines cancer detection rates with 50 previously collected, two-dimensional (2D) mammograms compared to detection rates in 50 previously collected, three-dimensional (3D) mammograms. The alpha selected for this pilot
In a random sample of patients with oropharyngeal cancer, the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer. The study has an alpha of 0.05 and a p = 0.01.What is the dependent variable?
In a random sample of patients with oropharyngeal cancer, the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer. The study has an alpha of 0.05 and a p = 0.01.If the type of oropharyngeal cancer is recorded as oral cavity/pharynx, tongue,
In a random sample of patients with oropharyngeal cancer, the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer. The study has an alpha of 0.05 and a p = 0.01.What would be an appropriate test for testing the null hypothesis? Explain.
In a random sample of patients with oropharyngeal cancer, the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer. The study has an alpha of 0.05 and a p = 0.01.What decision should be made about the null hypothesis? Explain.
In a random sample of patients with oropharyngeal cancer, the researcher wishes to determine if there is a relationship between gender and the type of oropharyngeal cancer. The study has an alpha of 0.05 and a p = 0.01.If this decision is not correct, what potential error could it be?
Construct a bar chart for mother’s marital status.See the data in Table 2-7. TABLE 2-7 Demographic Characteristics of 92 Adolescents Completing a Family Planning Survey n (%)
A researcher asks hospitalized individuals about their comfort in a new type of hospital gown. This is an example of what type of data?a. Ratiob. Independentc. Quantitatived. Qualitative
If a researcher is examining how exposure to cigarette ads affects smoking behavior, the cigarette ads are what type of variable?a. Qualitativeb. Quantitativec. Dependentd. Independent
A nurse practitioner measures how many times per minute a heart beats when an individual is at rest versus when running. She is measuring the heartbeat at what level of measurement?a. Interval/ratiob. Nominalc. Independentd. Ordinal
If a researcher is examining how exposure to cigarette ads affects smoking behavior, smoking behavior is what type of variable?a. Ratiob. Independentc. Dependentd. Nominal
The research nurse is coding adults according to size. A person with a below-average body mass index (BMI) is coded as 1, average is 2, and above average is 3. What level of measurement is this?a. Nominalb. Ratioc. Ordinald. Interval
You are asked to design a study measuring how nutritional status is related to serum lead levels in children. You assess calcium and fat intake, as well as serum lead levels in a sample of 30 children who are 2 years old. Lead levels are measured in micrograms per deciliter (mcg/dL). One child had
You are asked to design a study to examine the relationship between preoperative blood pressure and postoperative hematocrit.What is your independent variable?
You are asked to design a study to examine the relationship between preoperative blood pressure and postoperative hematocrit.How will you measure each, and what level of measurement is this?
You are asked to design a study to examine the relationship between preoperative blood pressure and postoperative hematocrit.What is your dependent variable?
You are later asked to do a follow-up study to see whether requiring an intraoperative blood transfusion had an impact on postoperative rates of poor mental health, specifically depression.What is your independent variable?
You are later asked to do a follow-up study to see whether requiring an intraoperative blood transfusion had an impact on postoperative rates of poor mental health, specifically depression.What is your dependent variable?
You are later asked to do a follow-up study to see whether requiring an intraoperative blood transfusion had an impact on postoperative rates of poor mental health, specifically depression.How will you measure these variables, and why?
You are later asked to do a follow-up study to see whether requiring an intraoperative blood transfusion had an impact on postoperative rates of poor mental health, specifically depression.Is your dependent variable measured at the highest level? If not, why not?
You decide to measure depression on the following scale: 1 = low, 2 = moderate, 3 =What level of measurement is this?
You decide to measure depression on the following scale: 1 = low, 2 = moderate, 3 =How could this measure be improved?
You decide to measure depression on the following scale: 1 = low, 2 = moderate, 3 =Why might you want to improve it?
You decide to measure depression on the following scale: 1 = low, 2 = moderate, 3 =You decide to measure postoperative hematocrit by serum levels. Is this a quantitative or qualitative measurement?
You decide to measure depression on the following scale: 1 = low, 2 = moderate, 3 =You discover that all but those with the lowest hematocrits had higher levels of depression after their surgery and transfusion. Why might the group that had the most critical need for the transfusions not have the
Elevated serum lead levels in childhood are associated with lower IQ, hyperactivity, aggression, poor growth, diminished academic performance, increased delinquency, seizures, and even death. The neurological damage that occurs cannot be reversed, even once exposure is stopped.What level of
Elevated serum lead levels in childhood are associated with lower IQ, hyperactivity, aggression, poor growth, diminished academic performance, increased delinquency, seizures, and even death. The neurological damage that occurs cannot be reversed, even once exposure is stopped.Can you increase the
Elevated serum lead levels in childhood are associated with lower IQ, hyperactivity, aggression, poor growth, diminished academic performance, increased delinquency, seizures, and even death. The neurological damage that occurs cannot be reversed, even once exposure is stopped.If you are looking at
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.What is the independent variable? TABLE
Elevated serum lead levels in childhood are associated with lower IQ, hyperactivity, aggression, poor growth, diminished academic performance, increased delinquency, seizures, and even death. The neurological damage that occurs cannot be reversed, even once exposure is stopped.Describe how this
Elevated serum lead levels in childhood are associated with lower IQ, hyperactivity, aggression, poor growth, diminished academic performance, increased delinquency, seizures, and even death. The neurological damage that occurs cannot be reversed, even once exposure is stopped.Which way do you
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.What is the dependent variable? TABLE
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.In this study, the nurse researcher measures
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.If instead the nurse researcher decided to
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.If the nurse researcher decided to measure
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.If the nurse researcher measured nausea as
A nurse researcher is assessing how well patients respond to two different dosing regimens of a new drug approved to treat diabetic neuropathy. Two different dosing regimens are administered, and side effects are monitored. Results are shown in Table 1-2.If the nurse researcher asked the subjects
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