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Within the quantitative methodological approach are several
research designs. A research design simply provides more
information on how and at what points data will be collected.
The decision of design is driven by the research question and
purpose of the study. For example, if your aim is to measure the
effects of psychoeducation on social work clients, you might
take measurements before and after the intervention (pretest-
posttest).
Some designs are better than others in terms of
validity
—the accuracy of the measurement. For this Discussion, you
explore threats to internal validity and determine which
research design is the best at controlling for these threats.
To Prepare:
Review the Learning Resources on quantitative research.
Consider internal and external validity, the differences between
them, and threats to validity when conducting research.
Reflect on which quantitative research design controls for all
threats to internal validity.
By Day 3
Post
your initial response to the following:
What is the difference between internal and external validity?
Select two internal validity threats and describe each.
After examining each category and list of designs, determine
which design controls for all threats to internal validity. Explain
how this design controls for all threats.
Please use the Learning Resources to support your post (i.e.,
cite and reference).
By Day 6
Respond
to two colleagues by:
Comparing the threats of internal validity they chose with the
ones you chose
Suggesting ways in which one of their identified threats could
be eliminated or its effects reduced when conducting a study
Fundamentals of Library Research - Instructional Media -
Academic Guides at Walden University
Explore Methodologies - Student Research Support - Academic
Guides at Walden University
Within the quantitative methodological approach are several research

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Within the quantitative methodological approach are several research

  • 1. Within the quantitative methodological approach are several research designs. A research design simply provides more information on how and at what points data will be collected. The decision of design is driven by the research question and purpose of the study. For example, if your aim is to measure the effects of psychoeducation on social work clients, you might take measurements before and after the intervention (pretest- posttest). Some designs are better than others in terms of validity —the accuracy of the measurement. For this Discussion, you explore threats to internal validity and determine which research design is the best at controlling for these threats. To Prepare: Review the Learning Resources on quantitative research. Consider internal and external validity, the differences between them, and threats to validity when conducting research. Reflect on which quantitative research design controls for all threats to internal validity. By Day 3 Post your initial response to the following: What is the difference between internal and external validity?
  • 2. Select two internal validity threats and describe each. After examining each category and list of designs, determine which design controls for all threats to internal validity. Explain how this design controls for all threats. Please use the Learning Resources to support your post (i.e., cite and reference). By Day 6 Respond to two colleagues by: Comparing the threats of internal validity they chose with the ones you chose Suggesting ways in which one of their identified threats could be eliminated or its effects reduced when conducting a study Fundamentals of Library Research - Instructional Media - Academic Guides at Walden University Explore Methodologies - Student Research Support - Academic Guides at Walden University