Researchers consider validity and reliability with each new study they design. This is because validity and reliability are not fixed but rather reflect a particular study’s unique variables, research design, instruments, and participants.
In the context of research design, two types of validity, which speak to the quality of different features of the research process, are considered: internal validity and external validity. Assuming that the findings of a research study are internally valid—i.e., the researcher has used controls to determine that the outcome is indeed due to manipulation of the independent variable or the treatment—external validity refers to the extent to which the findings can be generalized from the sample to the population or to other settings and groups. Reliability refers to the replicability of the findings.
For this Discussion, you will consider threats to internal and external validity in quantitative research and the strategies used to mitigate these threats. You will also consider the ethical implications of designing quantitative research.
Post
an explanation of a threat to internal validity and a threat to external validity in quantitative research. Next, explain a strategy to mitigate each of these threats. Then, identify a potential ethical issue in quantitative research and explain how it might influence design decisions. Finally, explain what it means for a research topic to be
amenable to scientific study
using a quantitative approach.
Be sure to support your Main Issue Post and Response Post with reference to the week’s Learning Resources and other scholarly evidence in APA Style.
Babbie, E. (2017)
Basics of social research
(7th ed.). Boston, MA: Cengage Learning.
Chapter 3, “The Ethics and Politics of Social Research”
Burkholder, G. J., Cox, K. A., Crawford, L. M., & Hitchcock, J. H. (Eds.). (2020).
Research designs and methods: An applied guide for the scholar-practitioner
. Thousand Oaks, CA: Sage.
Chapter 12, “Quality Considerations”
Chapter 13, "Ethical Considerations"
.
Researchers consider validity and reliability with each new study th.docx
1. Researchers consider validity and reliability with each new
study they design. This is because validity and reliability are
not fixed but rather reflect a particular study’s unique variables,
research design, instruments, and participants.
In the context of research design, two types of validity, which
speak to the quality of different features of the research
process, are considered: internal validity and external validity.
Assuming that the findings of a research study are internally
valid—i.e., the researcher has used controls to determine that
the outcome is indeed due to manipulation of the independent
variable or the treatment—external validity refers to the extent
to which the findings can be generalized from the sample to the
population or to other settings and groups. Reliability refers to
the replicability of the findings.
For this Discussion, you will consider threats to internal and
external validity in quantitative research and the strategies used
to mitigate these threats. You will also consider the ethical
implications of designing quantitative research.
Post
an explanation of a threat to internal validity and a threat to
external validity in quantitative research. Next, explain a
strategy to mitigate each of these threats. Then, identify a
potential ethical issue in quantitative research and explain how
it might influence design decisions. Finally, explain what it
means for a research topic to be
amenable to scientific study
using a quantitative approach.
Be sure to support your Main Issue Post and Response Post with
reference to the week’s Learning Resources and other scholarly
2. evidence in APA Style.
Babbie, E. (2017)
Basics of social research
(7th ed.). Boston, MA: Cengage Learning.
Chapter 3, “The Ethics and Politics of Social Research”
Burkholder, G. J., Cox, K. A., Crawford, L. M., & Hitchcock,
J. H. (Eds.). (2020).
Research designs and methods: An applied guide for the
scholar-practitioner
. Thousand Oaks, CA: Sage.
Chapter 12, “Quality Considerations”
Chapter 13, "Ethical Considerations"
