What type of research is being conducted and explain the sampling technique?

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Instructions:

In each of the following examples, identify the sampling method being used. Also state if the design is qualitative or quantitative. There will be both designs included in these problems. For example, it can be a random sample using a pre-test post test design (quantitative).

1. A researcher is interested in political attitudes of individuals within a particular state. She will use open ended questions and talk to focus groups. The researcher uses the following procedure to obtain a sample: (a) they will divide the united states into four quadrants, then (b) select small random focus groups from each state. What type of research is being conducted and explain the sampling technique?

2. A researcher wants to determine if reading improved after giving a 4 week course using a text book she just developed. They will give a pretest before the 4 week program and then a posttest after the program. They have population of 100 third grade children from a local school district from which a sample of 25 children is to be selected. Each child’s name is put on a list, and each child is assigned a number from 1 to 100. Then the numbers 1 to 100 are written on separate pieces of paper and shuffled. Finally, the researcher picks 25 slips of paper and the numbers on the paper determine the 25 participants. What type of research is being conducted and explain the sampling technique?

3. All students from the XXX University Doctor of Physical Therapy (DPT) and Master of Occupational Therapy (OT) programs were asked to participate in a study analyzing the effects of yoga and humor on stress. A survey on stress was initially given along with taking the blood pressure and heart rate. After running on the treadmill, the same variables were remeasured. What type of research is being conducted and explain the sampling technique?

4. Five Coordinators of Infection Control (CICs) at various hospitals in XXX were asked to participate in an open-ended interview to assess their knowledge and attitudes regarding disinfection methods utilized in hospitals, with special emphasis on ultraviolet (UV) light disinfection techniques. What type of research is being conducted and explain the sampling technique?

Explain whether the researcher should use an independent-samples t-test or a related-samples t-test for this scenario. Provide a rationale for your decision.

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Imagine you are a researcher who is interested in studying whether sleep deprivation leads to increased reaction times (i.e., being slower) when driving. You randomly select a sample of 30 licensed drivers. Fifteen participants are randomly assigned to get 5 hours of sleep for three consecutive nights. The other 15 participants are randomly assigned to get 8 hours of sleep for three consecutive nights. For the purposes of this Assignment, assume that all participants sleep exactly the required amounts. After the third night, all participants take a driving simulation test that measures their reaction times.

  1. Explain whether the researcher should use an independent-samples t-test or a related-samples t-test for this scenario. Provide a rationale for your decision.
  2. Identify the independent variable and dependent variable.
  3. Knowing the researcher believes that people who sleep less will have slower reaction times, state the null hypothesis and alternate hypothesis in words (not formulas).
  4. Explain whether the researcher should use a one-tailed test or two-tailed test and why.
  5. Identify the obtained t value for this data set using SPSS and report it in your answer document.
  6. State the degrees of freedom and explain how you calculated it by hand.
  7. Identify the p value using SPSS and report it in your answer document.
  8. Explain whether the researcher should retain or reject the null hypothesis. Provide a rationale for your decision. Are the results statistically significant?
  9. Explain what the researcher can conclude about the relationship between amount of sleep and reaction times.

Be sure to fully explain the rationale for your answer to each question, including evidence from the text and Learning Resources.

Provide an APA reference list.

Evaluate the appropriateness of the research methods and analytical approaches used in the study. Support the position with evidence cited from the textbook and at least one other scholarly/peer-reviewed source about the research design or method.

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Prior to beginning work on this assignment, review the assigned course textbook readings.

Your instructor will post an announcement with the reference (PROVIDED IN ATTACHMENTS) for the quantitative research study to be critiqued in this assignment.

Calder Calisi, C. (2017). The Effects of the Relaxation Response on Nurses’ Level of Anxiety, Depression, Well-Being, Work-Related Stress, and Confidence to Teach Patients. Journal of Holistic Nursing, 35(4), 318–327. https://doi-org.proxy-library.ashford.edu/10.1177/0898010117719207

After reading the posted study, use the Quantitative Research Critique Template to compose and organize your assignment.

In your paper,

• Summarize the research question, hypothesis, methods, and results of the assigned quantitative study.

• Determine whether the study used an experimental or non-experimental approach.

• Evaluate the appropriateness of the research methods and analytical approaches used in the study. Support the position with evidence cited from the textbook and at least one other scholarly/peer-reviewed source about the research design or method.

• Analyze ethical issues pertaining to how the study was carried out.

• Critique the strengths, weaknesses, and limitations of the study.

• Recommend a research question and methods for a follow-up study on the topic.

• Utilize the provided template with section headings.

The Quantitative Research Critique paper

• Must be four to five double-spaced pages in length (not including title and references pages) using the template provided and formatted according to APA style as outlined in the Ashford Writing Center (Links to an external site.)
’s APA Style (Links to an external site.)
The template is a Word document that is pre-formatted in APA style. If unable to use the pre-formatted template, see the following instructions for formatting.

• Must include a separate title page with the following:

◦ Title of paper

◦ Student’s name

◦ Course name and number

◦ Instructor’s name

◦ Date submitted

What stage of Piaget’s development are the children in this video in? Give some evidence (other than the children’s age) to support that children are functioning in this stage.  Is this a good way to teach children in this age group?  Why or why not?

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Prompt: Specifically, the following critical elements must be addressed:

II. Diagnosis Justification

  1. Describe the initial DSM diagnosis.
    1. What is the overall descriptor of the diagnosis?
    2. What criteria must be met for the diagnosis?
    3. Describe which client behaviors are being used to meet the diagnostic criteria.
  2. Describe the cultural limitations that are known about the identified diagnosis.

Discuss the following considerations related to the diagnosis used:

C. Describe the developmental patterns of the client.

  1. Describe the observable behaviors.
  2. Identify what other diagnoses that should be ruled out. Make sure to provide rationale.
  3. Identify limitations with this diagnosis. Make sure to provide rationale.
  4. Use evidence-based research to support your justification.
    Rubric

Guidelines for Submission: Submit your justification section as a Microsoft Word document that is 3-5 pages in length and follows APA formatting requirements with

double spacing, 12-point Times New Roman font, and one-inch margins. will attach the case study of Sarah to answer questions

  • What stage of Piaget’s development are the children in this video in? Give some evidence (other than the children’s age) to support that children are functioning in this stage.  Is this a good way to teach children in this age group?  Why or why not?
  • How do you see self-fulfilling prophecy and learned helplessness portrayed in this video?
  • How was the self-esteem of the children effected by participating in this study? Why do you think the children’s test scores rose after participating in this experiment?
  • Give an example of how operant conditioning, classical conditioning and social observational learning were shown in this video. Be specific in your discussion.  For the discussion of classical conditioning, please write out the process.
  • How can you use Piaget’s theory and Kohlberg’s theory to explain the different reactions of the adults and children during this study?
  • Which theory (theories) of personality can help us understand the behavior of the students in this video? Support your answer with a strong discussion of that theory.

Note: Your paper should follow APA format and include a title page and a reference page.