Phase 4 Statistics

Introduce your scenario and data set.
Provide a brief overview of the scenario you are given above and the data set that you will be analyzing.
Classify the variables in your data set.
Which variables are quantitative/qualitative?
Which variables are discrete/continuous?
Describe the level of measurement for each variable included in your data set.
Discuss the importance of the Measures of Center and the Measures of Variation.
What are the measures of center and why are they important?
What are the measures of variation and why are they important?
Calculate the measures of center and measures of variation. Interpret your results in context of the selected topic.
Mean
Median
Mode
Midrange
Range
Variance
Standard Deviation
Discuss the importance of constructing confidence intervals for the population mean.
What are confidence intervals?
What is a point estimate?
What is the best point estimate for the population mean? Explain.
Why do we need confidence intervals?
Based on your selected topic, evaluate the following:
Find the best point estimate of the population mean.
Construct a 95% confidence interval for the population mean. Assume that your data is normally distributed and σ is unknown.
Please show your work for the construction of this confidence interval and be sure to use the Equation Editor to format your equations.
Write a statement that correctly interprets the confidence interval in context of your selected topic.
Based on your selected topic, evaluate the following:
Find the best point estimate of the population mean.
Construct a 99% confidence interval for the population mean. Assume that your data is normally distributed and σ is unknown.
Please show your work for the construction of this confidence interval and be sure to use the Equation Editor to format your equations.
Write a statement that correctly interprets the confidence interval in context of your selected topic.
Compare and contrast your findings for the 95% and 99% confidence interval.
Did you notice any changes in your interval estimate? Explain.
What conclusion(s) can be drawn about your interval estimates when the confidence level is increased? Explain.
Discuss the process for hypothesis testing.
Discuss the 8 steps of hypothesis testing?
When performing the 8 steps for hypothesis testing, which method do you prefer; P-Value method or Critical Value method? Why?

Sample Solution

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The phenomenon of drug abuse in the context of five different psychological perspectives.

  1. Briefly discuss the phenomenon of drug abuse in the context of five different psychological perspectives.
  2. Describe the basic structure of a research experiment. Include the definition and purpose of the hypothesis, independent variable, dependent variable, control group, experimental group, and random assignment.
  3. Explain what behavioral geneticists mean by the term heritability and why it is frequently misunderstood. Provide one example of low heritability and one example of high heritability.
  4. Psychologists have described the human nervous system as the communication and control center for the body. The nervous system allows us to take in information from the environment, communicate the information to different parts of the body, and coordinate the body’s response. The nervous system itself is made up of neurons, or nerve cells, that communicate with each other by receiving and transmitting electrochemical signals, called neurotransmission. All human behavior is made possible by the activity of individual neurons working together in the nervous system. Think about a simple action you do every day, like answering your phone. When you perform this routine act, what are the individual neurons in your nervous system doing to make it possible?

In a multi-paragraph essay, explain how the activity of individual neurons enables you to perform a simple action like answering your phone. Be sure to describe the main parts of a neuron, explain the unique function of each part, and describe how neurons use electrochemical signals for neurotransmission. Include details from class materials, readings, and research on the nervous system to support your discussion.

  1. Current research is revealing new relationships between sleep and memory formation. Discuss prior views and current research regarding the role of sleep. How might this apply to your own preparation for exams?
  2. Psychologists have identified five main personality traits, often called the “Big Five” or the five-trait model. Think about the “Big Five” personality traits we studied in class. Then select a real or fictional character from literature, film, television, or public life. How could the “Big Five” model be used to understand the character’s personality?

In a multi-paragraph essay, explain what is meant by a “personality trait” according to the “Big Five” model, define each of the “Big Five” traits, and describe the character’s personality using the “Big Five” traits. For each trait, be sure to provide evidence from the character’s thoughts, emotions, and behavior. Include details from class materials, readings, and research on personality to support your discussion.

  1. Social psychologists like Solomon Asch have studied the conditions that affect how people act in group situations, especially the ways in which people conform to the attitudes and behavior of others. Drawing on your personal experience, think of a situation in which you either did or did not conform to the attitudes and behavior of others in a group.

In a multi-paragraph essay, describe the situation and discuss the factors that influenced you to conform or not conform. Be sure to include information from class materials, readings, and research on group conformity to support your discussion.

  1. Describe the controversy over whether routine vaccinations in children cause autism. What is the current interpretation of the scientific evidence? What has been a consequence of parental concerns about a potential link between routine vaccinations and autism?
  2. For centuries, people have believed myths and misconceptions about psychological disorders and the people who suffer from them. Modern psychological research has allowed us to correct some of these misconceptions. As a result, many people have changed their ideas about mental and emotional disorders. Think of a common misconception you have observed in society or in your personal experience. How could information from research be used to change people’s views of psychological disorders? How can this information help us to better understand people who experience mental and emotional disorders?

In a multi-paragraph essay, describe the misconception you observed and discuss how information from research could be used to change this misconception about psychological disorders and the people who suffer from them. Be sure to include details from class materials, readings, and research on psychological disorders to support your discussion.

  1. Imagine that you are an experienced mental health professional. Choose a psychological disorder and describe the type of treatment plan that you would initiate for such a disorder. Describe how you would modify your treatment plan for certain patients, if they do not respond well to your typical treatment paradigm.
  2. Give an example of a highly stressful circumstance that you have experienced (or you may create a fictitious scenario) and discuss the various physiological changes that would occur at each stage of Selye’s general adaptation syndrome as a result of that event.

Sample Solution

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Primary sociological theories that explain gendered roles and behaviors

  1. Summarize the primary sociological theories that explain gendered roles and behaviors.
  2. Summarize the gendered inequalities in education, the workplace, and in intimate relationships.
  3. Dating, Paring, and Courtship
    What are the primary functions of dating and courtship.
    Describe minimally three ways of mate selection and meeting mates. Describe the Mating gradient Factors
    Affecting Eligibility/ Availability

Sample Solution

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Evaluating a Program

This first assignment requires students to compare and contrast evaluation approaches as described in Fitzpatrick, Sanders & Worthen  (2011; FSW hereafter). On page 123 of FSW the authors classify several evaluation approaches into four categories based on the identification of essential factors that guide the evaluation. Each of these approaches is then expanded in subsequent chapters.
Select 2 of these evaluation approaches (these can be under the same factor or under a different factor) and compare and contrast these 2 approaches. Identify the essential common elements of each approach as well as the key differences between these.
Also, identify a program that could be evaluated (ideally, this should be the program the student intends to evaluate as part of the Strategic Research Project), and using the definition of program provided on page 8 of FSW will provide a brief description of the program; in addition, using one of these evaluation approaches, explain why the approach is a best fit to evaluate the program in question.
This paper should be no longer than 5 pages and must follow APA form and style guidelines.