Question

16)Define internal validity: a. The extent to which we can draw causal conclusions about a study...

16)Define internal validity:
a. The extent to which we can draw causal conclusions about a study such as random and systematic error, confounding, and selection bias
b. Exchangeability or how comparable the study group is to otherand explains generalizability or transportability

17. Define external validity:
a. The extent to which we can draw causal conclusions about a study such as random and systematic error, confounding, and selection bias
b. Exchangeability or how comparable the study group is to otherand explains generalizability or transportability
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Solution :

16)Define internal validity:

Answer :

a. The extent to which we can draw causal conclusions about a study such as random and systematic error, confounding, and selection bias

17. Define external validity:

Answer :

b. Exchangeability or how comparable the study group is to otherand explains generalizability or transportability

This are the definitions which are mostly used in experimental study design

Thank You..!!

Please like it...

Add a comment
Know the answer?
Add Answer to:
16)Define internal validity: a. The extent to which we can draw causal conclusions about a study...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Information about the study population and study design can help with the minimization of: a. Selection...

    Information about the study population and study design can help with the minimization of: a. Selection bias and random error b. Random error and confounding c. Selection bias and confounding d. None of the above

  • 2. Which two study designs are best suited for establishing temporality? | 3. In the first...

    2. Which two study designs are best suited for establishing temporality? | 3. In the first of two steps to determining causal inference, epidemiologists must determine is an association is free of bias, confounding, and random error. a) What is confounding and explain which epidemiological study design is best for controlling confounding, b) In studies in which random assignment is not possible, how might blas due to a known confounder be minimized. Describe four methods. c) What is selection bias...

  • 1. When we conclude treatment are different than it actually is, what type of error we...

    1. When we conclude treatment are different than it actually is, what type of error we are committing? Type I error Type II error Type III error Type IV error 2.Generalizability is increased by increasing External validity Internal validity Randomization Sampling 3. Recall bias occurs when a. Questions asked to participants are not time limited b. Questions asked to participants are subject limited 4. Selection bias is more common in Case-control study and experimental study Case control and cross sectional...

  • Which of the following is NOT a way to reduce random error? Increase sample size Change...

    Which of the following is NOT a way to reduce random error? Increase sample size Change study design Randomization Improve instrumentation Ensure representativeness True/False: Random errors are more serious for the validity of a study than systematic errors. A group of women with a family history of breast cancer enroll themselves into a study that aims to reduce incidence of breast cancer. This is an example of what type of bias? Surveillance bias Nonresponse bias Recall bias Prevarication bias Misclassification...

  • Answer the following questions: 1) Which of the following research designs poses a threat to internal validity called se...

    Answer the following questions: 1) Which of the following research designs poses a threat to internal validity called selection? a) one-shot case study b) one-group pretest-post test c) static-group comparison d) one-group 2) This type of research is considered a descriptive methodology in which results of interviews, observations, or questionnaires reveal what is happening at a particular occurrence. It involves recording, describing, analyzing, and interpreting conditions that presently exist. Comparisons and contrasts are attempted to reveal relationships between the non-manipulated...

  • Which of the following is an example of an observational cohort study that might be used...

    Which of the following is an example of an observational cohort study that might be used to assess the association between agent X and disease Y? (Select one) a. A group of individuals exposed to agent X are recruited in 1995 and followed until 2004 at which time they are tested for the presence of disease Y. b. A group of individuals with disease Y and without disease Y are recruited and interviewed about exposure to agent X in 2004....

  • ___________ is the extent to which an observed effect or outcome can be generalized to another...

    ___________ is the extent to which an observed effect or outcome can be generalized to another setting or population. It addresses the question will I get the same results if I repeat the intervention in a different setting, at a different time, with a different facilitator? Internal validity Maturation External validity Participant attrition Flag this Question Question 22 The __________ represents all of the elements (e.g. individuals, items, objects) whose characteristics are being studies in an evaluation. Population Sample Control...

  • In the following two paragraphs, fill in the blanks using the pumbers corresponding to the words...

    In the following two paragraphs, fill in the blanks using the pumbers corresponding to the words or word phrases below. Note that each word or word phrase may be used more than once, but that not all words will be used (worth 1 point per blank) 1. internal validity 2. extraneous 3. equivalence confounding extraneous variables 5. manipulated causal validity population validity selectively 9. non randomly 10. correlational 11. real world 12. external validity 13. randomly 14. nonequivalence 15. independent...

  • Which of the following actions taken by the researcher would MOST likely improve the external validity...

    Which of the following actions taken by the researcher would MOST likely improve the external validity in a study? Answers A-D A Enrolling a diverse subject sample. B Randomly assigning subjects to groups. C Conducting a power analysis. D Using restrictive inclusion/exclusion criteria. Which of the following is an accurate statement about the reliability of an instrument in a research study? Answers A-D A A tool can be reliable even if it is not valid. B A tool can be...

  • 1. Which type of research seeks to identify causes and effects of social phenomena, such as...

    1. Which type of research seeks to identify causes and effects of social phenomena, such as by predicting how a dependent variable will change or vary in response to variation in an independent variable? Descriptive Quota Evaluation Explanatory Case Study 2. A _________________ is a smaller group of data that is selected from a population. micro-group sample parameter sampling error generalizability 3. What is considered to be the fundamental aspect of probability sampling? Snowballing Populations Samples Unbiased selection Random selection...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT