Skip to document
Welcome to StudocuSign in to access the best study resources
Guest user
0followers
Upload
HomeMy LibraryAsk AI
  • You don't have any recent items yet.
My Library
  • You don't have any courses yet.
  • You don't have any books yet.
  • You don't have any Studylists yet.
Premium
This is a Premium Document. Some documents on Studocu are Premium. Upgrade to Premium to unlock it.

Quiz 2

study guide
Course

Intro to Biomedical Statistics (BST 322)

323 Documents
Students shared 323 documents in this course
Academic year: 2021/2022
Uploaded by:
Student
Gabriel Esteves
National University (US)
0followers
0Uploads
35upvotes

Recommended for you

Comments

Please sign in or register to post comments.
  • Student
    Do you happen to have week 3 and 4 quiz "study guides"

Students also viewed

Related documents

Preview text

 Question 1

1 out of 1 points A nurse researcher studied the effect of biofeedback on blood pressure. For this study, she measured blood pressure on subjects, taught them biofeedback techniques, then re-measured blood pressure on the same group of patients. Which t-test would be most appropriate for this design? Selected Answer:

Dependent groups t-test

Answers: Independent groups t-test

Dependent groups t-test One-sample t-test Pearson's correlation coefficient

 Question 2

1 out of 1 points If you wanted to compare the effect of 3 separate kinds of interventions (3 separate groups of one independent variable -the intervention type) on a single dependent variable, the appropriate test would be: Selected Answer:

One-way ANOVA

Answers: One-way ANOVA

Two-sample t-test Multivariate ANOVA Point biserial correlation

 Question 3

1 out of 1 points Nurse researchers hypothesized that the use of therapeutic touch would reduce anxiety levels in pre-op hip replacement patients. The null hypothesis would be: Selected Answer:

Therapeutic touch does not reduce anxiety levels in pre-op hip replacement patients. Answers: Therapeutic touch reduces anxiety levels in pre-op hip replacement patients.

Therapeutic touch does not reduce anxiety levels in pre-op hip replacement patients. Therapeutic touch reduces 25% of anxiety levels in pre-op hip replacement patients. Some other therapy reduces anxiety levels in pre-op hip replacement patients.

 Question 4

1 out of 1 points In inferential statistics, the objective is to determine how probable it is that: Selected Answer:

The null hypothesis is false.

Answers: The alternative hypothesis is true. The null hypothesis is true. The alternative hypothesis is false.

The null hypothesis is false.

 Question 5

1 out of 1 points A range of values estimated to have a high probably of containing the population value is called: Selected Answer:

Confidence interval

Answers: Point estimate Standard error of the mean

Confidence interval Standard deviation

 Question 6

1 out of 1 points The hypothetical result of an infinite sample from a given population and calculating of some statistic from those infinite samples is a: Selected Answer:

Sampling distribution Answers: Sampling distribution Sampling error Standard error Standard sample

 Question 7

1 out of 1 points The Central Limit Theorem states: Selected Answer:

The mean of a sampling distribution of means is equal to the population mean. Answers: The smaller the standard error of the mean, the closer it is to the population mean.

The mean of a sampling distribution of means is equal to the population mean. The smaller the sample size, the closer the sample mean approximates the population mean. A sample with a larger standard of error of the mean still has a mean that approximates the population mean.

 Question 8

1/

 Question 12

1 out of 1 points What does it mean if your test result is "statistically significant"? Selected Answer:

It is unlikely that the results occurred by chance alone. Answers: You have proved your research hypothesis. You have accepted the null hypothesis. Your result is clinically significant.

It is unlikely that the results occurred by chance alone.

 Question 13

1 out of 1 points In medical statistics, we general set the level of significance at: Selected Answer:

0.

5

Answers: 0.

  1. 5

 Question 14

1 out of 1 points The smaller the SEM, Selected Answer:

the more confidence we have that the estimates from the sample include the population value Answers: the larger the mean the smaller the value of the test statistic

the more confidence we have that the estimates from the sample include the population value the less confidence we have that the estimates from the sample include the population value

 Question 15

1 out of 1 points Level of significance is symbolized by:

Selected Answer: α

Answers: ß μ

α s

 Question 16

1 out of 1 points If a researcher accepts a null hypothesis when that hypothesis is actually false, he has committed: Selected Answer:

a type II error Answers: a type I error

a type II error a type III error no error

 Question 17

1 out of 1 points A study in which a set of patients are tested for pain level before and after being given a new pain medication would use which test? Selected Answer:

Dependent t- test Answers: ANOVA Independent t- test

Dependent t- test Regression

 Question 18

1 out of 1 points If you wanted to test a set of patients' responses to a given therapy at 1, 3, and 6 months, you would use which statistical test? Selected Answer:

Repeated measures ANOVA Answers: Paired t-test ANOVA

Repeated measures ANOVA Multiple ANOVA

 Question 19

1 out of 1 points Statistical tests that make assumptions about the underlying distributions are called: Selected Answer:

Parametric tests

Was this document helpful?
Premium
This is a Premium Document. Some documents on Studocu are Premium. Upgrade to Premium to unlock it.

Quiz 2

Course: Intro to Biomedical Statistics (BST 322)

323 Documents
Students shared 323 documents in this course

University: National University (US)

Was this document helpful?

This is a preview

Do you want full access? Go Premium and unlock all 6 pages

  • Access to all documents

  • Get Unlimited Downloads

  • Improve your grades

Upload

Share your documents to unlock

Already Premium?
Question 1
1 out of 1 points
A nurse researcher studied the effect of biofeedback on blood pressure. For this
study, she measured blood pressure on subjects, taught them biofeedback
techniques, then re-measured blood pressure on the same group of patients. Which
t-test would be most appropriate for this design?
Selected
Answer: Dependent groups t-test
Answers: Independent groups t-test
Dependent groups t-test
One-sample t-test
Pearson's correlation
coefficient
Question 2
1 out of 1 points
If you wanted to compare the effect of 3 separate kinds of interventions (3 separate
groups of one independent variable -the intervention type) on a single dependent
variable, the appropriate test would be:
Selected
Answer: One-way ANOVA
Answers: One-way ANOVA
Two-sample t-test
Multivariate ANOVA
Point biserial
correlation
Question 3
1 out of 1 points
Nurse researchers hypothesized that the use of therapeutic touch would reduce
anxiety levels in pre-op hip replacement patients. The null hypothesis would be:
Selected
Answer: Therapeutic touch does not reduce anxiety levels in pre-op hip
replacement patients.
Answers: Therapeutic touch reduces anxiety levels in pre-op hip replacement
patients.
Therapeutic touch does not reduce anxiety levels in pre-op hip
replacement patients.
Therapeutic touch reduces 25% of anxiety levels in pre-op hip
replacement patients.
Some other therapy reduces anxiety levels in pre-op hip replacement
patients.
Question 4
1 out of 1 points
In inferential statistics, the objective is to determine how probable it is that:
Selected
Answer: The null hypothesis is false.

Why is this page out of focus?

This is a Premium document. Become Premium to read the whole document.

Why is this page out of focus?

This is a Premium document. Become Premium to read the whole document.

Students also viewed

Related documents