10) A graduate student in gerontology was interested in volunteerism in the elderly and if it...
10) A graduate student in gerontology was interested in volunteerism in the elderly and if it leads to increased life satisfaction. He recruited 50 elderly participants who self-reported volunteering at least once a week for a charity or similar organization and 50 elderly participants who self-reported that they do no volunteer work of any kind. The groups were matched in terms of age, health and socio-economic status. He administered a standard Life Satisfaction questionnaire to each of his participants. When he compared the two groups, he found that the mean Life Satisfaction score for the volunteer group was significantly higher (i.e., better) than the group that did not volunteer. He concluded that volunteerism was responsible for this difference in life satisfaction between the two groups and that more elderly individuals should be encouraged to engage in volunteer work. Do you agree with the student’s conclusion? Why or why not? If you agree with the student’s conclusion, explain why his study was a good one. If you do not agree, how would you change the study?
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10) A graduate student in gerontology was interested in
volunteerism in the elderly and if it...
social gerontologist believes that there is a connection between the weekly number of hours elderly people...
social gerontologist believes that there is a connection between the weekly number of hours elderly people spend volunteering and life satisfaction. They conducted a study and collected the following data. Participant Weekly Hours Volunteering Level of Life Satisfaction A 12 16 B 10 30 C 3 5 D 5 7 E 18 42 F 7 10 G 22 51 * Volunteer Hours was measured by asking the participants , "On average, how many hours do you volunteer each week?"_______ *Life...
An instructor wants more students in his 8:00 am class to participate. He hypothesizes that giving...
An instructor wants more students in his 8:00 am class to participate. He hypothesizes that giving students a cup of coffee at the start of class will do the trick. The first 20 students who enter the classroom are given a cup of coffee (the experimental group), and the last 20 students are not (the control group). What (if anything) is problematic about the way students were assigned to the groups, and how should the instructor have assigned participants to...
1) To test the null hypothesis in the James Bond experiment (test his claim that he...
1) To test the null hypothesis in the James Bond experiment (test his claim that he can taste the difference between a Martini that is shaken and one that is stirred) you have him taste 8 shaken martinis and 8 stirred martinis, presented in a random order. How would you interpret the results of the experiment if he was correct on 0 (zero) out of 16 times? 2) An experimenter expects an effect to come out in a certain direction....
8. A two-tailed hypothesis test for a repeated-measures design Аа Аa A graduate student is interested...
8. A two-tailed hypothesis test for a repeated-measures design Аа Аa A graduate student is interested in whether journaling can affect grief and healing. For his study, he selects a random sample of 64 adults who have been widowed within the past 10 to 14 months. The subjects complete a battery of psychological questionnaires before and after spending two months journaling about their emotions. Before the two months of journaling, the mean score on the impact of event scale-avoidance subscale,...
Please answer these: 44. Hunger researchers initially assumed that the _____________ was a brain region responsible...
Please answer these: 44. Hunger researchers initially assumed that the _____________ was a brain region responsible for initiating hunger and eating because when it was electrically stimulated, animals would begin to eat. A. ventromedial hypothalamus (VMH) B. ascending reticular formation C. lateral hypothalamus (LH) D. paraventricular nucleus (PVN) 47. When presented with Stanley Milgram’s experimental design, a group of experts and lay people estimated that approximately 1 percent of the participants would be completely obedient, but the results from his...
Read the following abstract: Previous research has shown that ostracism even by outgroup members is aversive....
Read the following abstract: Previous research has shown that ostracism even by outgroup members is aversive. In this study we examined whether ostracism by a particular type of outgroup, a despised outgroup, was sufficient to inflict emotional distress. We manipulated ostracism using Cyberball, an on-line ball toss game. Ostracized participants reported lower levels of belonging, self-esteem, control, and meaningful existence, and more negative mood, than included participants. Moreover, ostracism by despised outgroup members was no less aversive than ostracism by...
A study was performed to examine the self-identification of college students of Asian descent with various...
A study was performed to examine the self-identification of college students of Asian descent with various identity categories and assess whether there are attitudinal differences across these categories. Undergraduates at a large midwestern university who had identified themselves as being of Asian descent on their admission application were asked to participate in the study. A total of 630 undergraduates filled out the survey. One question classified the participants into groups by asking them to indicate the option with which they...
A study that looked at beverage consumption used sample sizes that were much smaller than previous...
A study that looked at beverage consumption used sample sizes that were much smaller than previous national surveys. One part of this study compared 20 children who were 7 to 10 years old with 5 who were 11 to 13. The younger children consumed an average of 8.2 oz of sweetened drinks per day while the older ones averaged 14.5 oz. The standard deviations were 10.9 oz and 8.2 oz respectively.Use younger children as population 1 (a) Do you think...
A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms...
A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma. Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo. The primary outcome is self-reported reduction of symptoms. Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo. When you test if there is a significant difference in the proportions...
a Eleanor Qwan is a college student who has started a non-profit organization to provide support...
a Eleanor Qwan is a college student who has started a non-profit organization to provide support and companionship for elderly shut-ins. She is now at the stage of recruiting volunteers. She envisions two major tasks to be performed by volunteers: visitation and derical work. She is interested in whether one of these tasks would be more attractive to volunteers than the other task, and she also is interested in whether males and females feel differently. She randomly selected 40 adult...
8. A two-tailed hypothesis test for a repeated-measures design Аа Аa A graduate student is interested in whether journaling can affect grief and healing. For his study, he selects a random sample of 64 adults who have been widowed within the past 10 to 14 months. The subjects complete a battery of psychological questionnaires before and after spending two months journaling about their emotions. Before the two months of journaling, the mean score on the impact of event scale-avoidance subscale,...
A study was performed to examine the self-identification of college students of Asian descent with various identity categories and assess whether there are attitudinal differences across these categories. Undergraduates at a large midwestern university who had identified themselves as being of Asian descent on their admission application were asked to participate in the study. A total of 630 undergraduates filled out the survey. One question classified the participants into groups by asking them to indicate the option with which they...
A study that looked at beverage consumption used sample sizes that were much smaller than previous national surveys. One part of this study compared 20 children who were 7 to 10 years old with 5 who were 11 to 13. The younger children consumed an average of 8.2 oz of sweetened drinks per day while the older ones averaged 14.5 oz. The standard deviations were 10.9 oz and 8.2 oz respectively.Use younger children as population 1 (a) Do you think...
a Eleanor Qwan is a college student who has started a non-profit organization to provide support and companionship for elderly shut-ins. She is now at the stage of recruiting volunteers. She envisions two major tasks to be performed by volunteers: visitation and derical work. She is interested in whether one of these tasks would be more attractive to volunteers than the other task, and she also is interested in whether males and females feel differently. She randomly selected 40 adult...
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