# Description Discussion: Selection of a Statistical Analysis Approach Though da …

Description Discussion: Selection of a Statistical Analysis Approach Though data analysis occurs after the study has completed a data collection stage, the researcher needs to have in mind what type of analysis will allow the researcher to obtain an answer to a research question. The researcher must understand the purpose of each method of analysis, the characteristics that must be present in the study for the design to be appropriate and any weaknesses of the design that might limit the usefulness of the study results. Only then can the researcher select the appropriate design. Choosing the appropriate design enables the researcher to claim the data that is potential evidence that provides information about the relationship being studied. Notice that it is not the statistical test which tells us that research is valid, rather, it is the research design. Social workers must be aware of and adjust any limitations of their chosen design that may impact the validity of the study. To prepare for this Discussion, review the handout, A Short Course in Statistics. If necessary, locate and review online resources concerning internal validity and threats to internal validity. Then, review the “Social Work Research: Chi Square” case study located in this week’s resources. Consider the confounding variables, that is, factors that might explain the difference between those in the program and those waiting to enter the program. BY DAY 3 Post an interpretation of the case study’s conclusion that “the vocational rehabilitation intervention program may be effective at promoting full-time employment.” Describe the factors limiting the internal validity of this study, and explain why those factors limit the ability to draw conclusions regarding cause and effect relationships. BY DAY 5 Respond to at least two colleagues by explaining how that colleague might rule out one of the confounding variables that they identified Colleague 1: Katherine Post an interpretation of the case study’s conclusion that “the vocational rehabilitation intervention program may be effective at promoting full-time employment.” The interpretation of the case study’s conclusion is that the intervention group displayed the appropriate amount of participates obtaining and maintaining employment to say that the case study is effective overall. Describe the factors limiting the internal validity of this study and explain why those factors limit the ability to draw conclusions regarding cause-and-effect relationships. The first limitation is that no random assignment was used or a control group. Another limitation is that of possible selection bias since it was a small particular population. “Validity refers to whether the outcome measure reflects what it is supposed to measure and whether it does so accurately” (Dudley, p 222). In this study, only 30 participants were selected in the beginning, and the criteria for selection was fairly strict causing it to shrink the pool of possible participants. This can make drawing conclusions difficult and also question the validity of the overall study. The largest question it raises is if the participant pool is biased, the cause and effect is not accurate. Future groups should gather information on those who obtained jobs but also if they were able to maintain them as well, determining the true effectiveness of the intervention. References Dudley, J. R. (2020). Social Work Evaluation (3rd Edition). Oxford University Press Academic US. https://mbsdirect.vitalsource.com/books/9780190916… Colleague 2: Paige Post an interpretation of the case study’s conclusion that “the vocational rehabilitation intervention program may be effective at promoting full-time employment.” Overall, based on the number of participants in the case study that were able to get a job and also keep it was enough to say that as a whole the case study is effective and reliable. The case study came to this conclusion based on looking at the comparison between the first group of 30 participants that did complete the vocational program and the 30 participants that were on the waiting list. Describe the factors limiting the internal validity of this study, and explain why those factors limit the ability to draw conclusions regarding cause-and-effect relationships. The first factor I would have to say that limits the internal validity of the study would be the selection bias because the participants volunteered for the study which could create differences from the beginning. There should have possibly been a pretest done to expand sureness in the study. “In the absence of random assignment, a pretest of the treatment and comparison groups on some important dimensions can help demonstrate preintervention equality (at least on those variables measured), thus increasing confidence in the internal validity of the study.” (Woodman, 2014) In order to establish cause and effect the cause must first be identified before the effect. References Woodman, R. W. (2014). The role of internal validity in evaluation research on organizational change interventions. Journal of Applied Behavioral Science, 50(1), 40–49. https://doi.org/10.1177/0021886313515613

## Calculate the price of your order

Select your paper details and see how much our professional writing services will cost.

We`ll send you the first draft for approval by at
Price: \$36
• Freebies
• Format
• Formatting (MLA, APA, Chicago, custom, etc.)
• Title page & bibliography
• Amendments to your paper when they are needed
• 275 word/double-spaced page
• 12 point Arial/Times New Roman
• Double, single, and custom spacing

Our custom human-written papers from top essay writers are always free from plagiarism.

Your data and payment info stay secured every time you get our help from an essay writer.

Your money is safe with us. If your plans change, you can get it sent back to your card.

## How it works

1. 1
You give us the details
Complete a brief order form to tell us what kind of paper you need.
2. 2
We find you a top writer
One of the best experts in your discipline starts working on your essay.
3. 3
You get the paper done

## Samples from our advanced writers

Check out some essay pieces from our best essay writers before your place an order. They will help you better understand what our service can do for you.

• Annotated bibliography
Annotated Bibliography
Nursing
APA
• Essay (any type)
Challenges facing business considering to start doing business in Latin American countries
Accounting
APA
• Essay (any type)
Mercier and Sperbergs argumentative theory of human reasoning
Master's
Psychology
APA
• Creative writing
Different ways to prepare for a cross-cultural negotiation, and ethical dilemma.
High school
Accounting
APA
• Creative writing
Different ways to prepare for a cross-cultural negotiation, and ethical dilemma.
High school
Accounting
APA

## Perks of our essay writing service

We offer more than just hand-crafted papers customized for you. Here are more of our greatest perks.

• Swift delivery
Our writing service can deliver your short and urgent papers in just 4 hours!
• Professional touch
We find you a pro writer who knows all the ins and outs of your subject.
• Easy order placing/tracking
Create a new order and check on its progress at any time in your dashboard.
• Help with any kind of paper
Need a PhD thesis, research project, or a two-page essay? For you, we can do it all.
• Experts in 80+ subjects
• Calculations and code
We also do math, write code, and solve problems in 30+ STEM disciplines.

• ### How do you ensure the quality of the essays?

We have a dedicated quality control team that reviews and edits every essay to ensure it meets our high standards for grammar, style, and content.
• ### Can I communicate with the writer directly?

Yes, you can communicate with your assigned writer through our messaging system, ensuring a smooth collaboration throughout the writing process.
• ### Do you offer refunds?

Our refund policy is outlined in our Terms of Service. We provide refunds under specific circumstances. Please review our Refund Policy for more details.
• ### Do you meet deadlines?

We understand the importance of deadlines. Our writers are committed to delivering orders on time, and we have a high success rate in meeting deadlines.
• ### What is your plagiarism policy?

• We have a strict zero-plagiarism policy. All essays are checked with plagiarism-detection software to ensure originality and authenticity.
• ### Can I request revisions?

• Yes, we offer free revisions within a specified period after delivery. If your essay doesn't meet your initial requirements, contact our support team, and we'll make it right.
• ### What is your pricing structure?

• Our pricing depends on factors like the type of paper, academic level, deadline, and additional services. You can find detailed pricing information on our Pricing page.
• ### What types of essays do you write?

• We cover a wide range of essay types, including argumentative, descriptive, expository, persuasive, research papers, dissertations, and more. Just let us know your specific requirements.