Week 3 Capstone Write Up

The Minnesota Multiphasic Personality Inventory (MMPI) is one of the most frequently used personality tests in psychology. The current standardized version, the MMPI-2, is used by trained professionals to assist in identifying personality structure and psychopathology. A forensic psychologist is interested in whether she can identify potential serial killers by their MMPI profiles. She is particularly interested in the Paranoia and Infrequency scales of the MMPI. She interviews 12 people who have already been identified as serial killers. Their scores on the Paranoia scale are recorded here: 69 84 56 89 47 63 86 58 74 35 71 60 ll Which of the following is a possible value for the range?

Dr. B has begun collecting survey data from students for his research study about handwashing practices of college students. At the same time, the IRB has just started reviewing his research study application. Dr. B has abided by IRB protocol by having the IRB review his application during the data collection process. Group of answer choices True False

Recently airlines have cut services, such as meals and snacks during flights, and started charging extra for some services, such as accommodating overweight luggage, last-minute flight changes, and pets traveling in the cabin. However, they are still concerned about service. Recently, a group of four carriers hired Brunner Marketing Research Inc. to survey passengers regarding their level of satisfaction with a recent flight. The survey included questions on ticketing, boarding, in-flight service, baggage handling, pilot communication, and so forth. Twenty-five questions offered a range of possible answers: excellent, good, fair, or poor. A response of excellent was given a score of 4, good a 3, fair a 2, and poor a 1. These responses were then totaled, so the total score was an indication of the satisfaction with the flight. The greater the score, the higher the level of satisfaction with the service. The highest possible score was 100. Brunner randomly selected and surveyed…

The second slide is the first part of the question  and the first slide is the second part of the question

According to Blandford (2013), what roles are there for Semi-Structured Qualitative Studies (SSQS) in Human Computer Interaction (HCI): Group of answer choices Understanding current needs and practices Evaluating the effects of new technologies in practice Both of these Neither of these

"Bullying," according to noted expert Dan Olweus, "poisons the educational environment and affects the learning of every child." Bullying and victimization are evident as early as preschool, with the problem peaking in middle school. Suppose you are interested in the emotional well-being of not only the victims but also bystanders, bullies, and those who bully but who are also victims (bully-victims). You decide to measure depression in a group of bully-victims and a group of bystanders using an 18-item, 5-point depression scale. Assume scores on the depression scale are normally distributed and that the variances of the depression scores are the same among bully-victims and bystanders. The group of 39 bully-victims scored an average of 51.6 with a sample standard deviation of 9 on the depression scale. The group of 31 bystanders scored an average of 45.2 with a sample standard deviation of 12 on the same scale. You do not have any presupposed assumptions about whether bully-victims or…

Prison isolation experiment, Part I. Subjects from Central Prison in Raleigh, NC, volunteered for an experiment involving an “isolation” experience. The goal of the experiment was to find a treatment that reduces subjects’ psychopathic deviant T scores. This score measures a person’s need for control or their rebellion against control, and it is part of a commonly used mental health test called the Minnesota Multiphasic Personality Inventory (MMPI) test. The experiment had three treatment groups: (1) Fourhoursofsensoryrestrictionplusa15minute“therapeutic”tapeadvisingthatprofessional help is available. (2) Four hours of sensory restriction plus a 15 minute “emotionally neutral” tape on training hunting dogs. (3) Four hours of sensory restriction but no taped message. Forty-two subjects were randomly assigned to these treatment groups, and an MMPI test was administered before and after the treatment. Distributions of the di↵erences between pre and post treatment scores (pre - post) are…

A study used ethnographic interview techniques, not usually part of ethnography, and quantitative questionnaires to answer questions about how young children (ages 9 to 15) are socialized into sports. How can researchers report coherently on the findings using these apparently incompatible data collection techniques?

As part of a long-term study of individuals 65 years of age or older, sociologists and physicians at the Wentworth Medical Center in upstate New York investigated the relationship between geographic location and depression. A sample of 60 individuals, all in reasonably good health, was selected; 20 individuals were residents of Florida, 20 were residents of New York, and 20 were residents of North Carolina. Each of the individuals sampled was given a standardized test to measure depression. Higher test scores indicate higher levels of depression. A second part of the study considered the relationship between geographic location and depression for individuals 65 years of age or older who had a chronic health condition such as arthritis, hypertension, and/or heart ailment. A sample of 60 individuals with such conditions was identified. Again, 20 were residents of Florida, 20 were residents of New York, and 20 were residents of North Carolina. Prepare a managerial report that summarizes…

A developmental psychologist would like to determine how much fine motor skill improves for children from age 3 to age 4. She takes a random sample of 9 three-year old children and a second sample of 9 four-year old children and measures fine motor skill in each using a manual dexterity test that measures fine motor skill. Higher scores on this test indicate better fine motor skills. Her data are: Three Year Olds: 35, 36, 39, 29, 35, 34, 33, 34, 35 Four Year Olds: 40, 35, 38, 39, 40, 50, 40, 38, 42 Is there a significant difference in the motor skills from age three to four? Test with an α = 0.01. What type of error is possible based on the outcome? Calculate and interpret the effect size. Report the mean motor skill score for each of the samples. On average, which group had the better fine motor skills?

The paper "Deception and Design: The Impact of Communication Technology on Lying Behavior"+ describes an investigation into whether lying is less common in face-to-face communication than in other forms of communication such as phone conversations or e-mail. Participants in this study were 30 students in an upper-division communications course at Cornell University who received course credit for participation. Participants were asked to record all of their social interactions for a week, making note of any lies told. Based on data from these records, the authors of the paper concluded that students lie more often in phone conversations than in face-to-face conversations and more often in face-to-face conversations than in e-mail. Discuss the limitations of this study, commenting on the way the sample was selected and potential sources of bias. (Select all that apply.) O Students knew that they were surveying themselves as to the truthfulness of their interactions, which could have…

Read the scenario below to determine which one of the threats to external validity (interaction between treatment and selection, interaction between treatment and location or interaction between treatment and history [time]) is of most concern.   During the academic school year of 2019-2020 researchers completed a study on the impact of early childhood education on the social development of children in the United States.  The researchers randomly selected programs in the county where they were employed to participate in the program.   A. Interaction of the treatment and selection B. Interaction of the treatment and location C. Interaction of the treatment and history

Top management of a large multinational corporation wants to create a culture of innovativeness and change. A consultant hired to assess the company's organizational culture finds that only 15% of employees are open to new ideas and approaches toward their work. One of his recommendations for the company is to conduct seminars for employees in order to disseminate and reinforce the new corporate philosophy. This is done for a six month trial period after which its value in changing employee attitudes will be assessed. Write the null and alternative hypotheses. 2. Based on data collected after the trial period, the company constructed a 95% confidence interval for the proportion of all employees open to new ideas and approaches toward their work. The resulting interval is 18% to 22%. What conclusion should the company reach about the seminars?

The University of Michigan Health and Retirement Study (HRS) surveys more than 22,000 Americans over the age of 50 every two years. A subsample of the HRS participated in an Internet-based survey that collected information on a number of topical areas, including health (physical and mental health behaviors), psychosocial items, economics (income, assets, expectations, and consumption), and retirement. Two of the questions asked were: "Would you say your health is excellent, very good, good, fair, or poor?" and “Do you smoke cigarettes now?" Here is the two-way table that summarizes the answers on these two questions: Current smoker Нealth Yes No Excellent 25 484 Very good 115 1557 Good 145 1309 Fair 90 545 Рoor 29 11 This table gives the responses of a survey of 4310 Americans to questions about their health and whether they currently smoke cigarettes. You might find this chi-square table useful. Do these data satisfy our guidelines for safe use of the chi-square test? Enter your…

1) Identify the type of observational study (cross-sectional, retrospective, or prospective) and explain the reason for your selection: A group of doctors studied New York City residents with and without respiratory problems. They went back in time to determine how involved they were in the New York City terrorist attacks on September 11, 2001 (Triola, 2013).

O What is the independent variable in the study for a Within-Subject Design? What are the levels of that independent variable? What is the dependent variable?

According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in the U.S. in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumers ("Consumer fraud and," 2008). Does this data provide  enough evidence to show that Alaska had a different proportion of identity theft than 23%? Test at 5% level.

Want to understand practice scenarios from my tips book on experimental designs and threats to internal and external validity.

A research group is interested in studing the “psychological impacts of sexual abuse in young adults”. They plan to conduct one-on-one interviews with individuals who have been sexually abused as children. The research group has put together an excellent application packet for IRB, however they have not included a consent form. The authors believe that they do not need to use consent forms for this study as most of the individuals are patients/ clients at their medical practice. In your understanding, does this proposed study need a consent form??

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The Pew Research Center Internet Project, conducted on the 25th anniversary of the Internet, involved a survey of 857 Internet users (Pew Research Center website, April 1, 2014). It provided a variety of statistics on Internet users. For instance, in 2014, 87% of American adults were Internet users. In 1995 only 14% of American adults used the Internet.a. The sample survey showed that 90% of respondents said the Internet has been a good thing for them personally. Develop a 95% confidence interval for the proportion of respondents who say the Internet has been a good thing for them personally.b. The sample survey showed that 67% of Internet users said the Internet has generally strengthened their relationship with family and friends. Develop a 95% confidence interval for the proportion of respondents who say the Internet has strengthened their relationship with family and friends.c. Fifty-six percent of Internet users have seen an online group come together to help a person or community…