identify the independent variable, the dependant variable and the unit of analysis of the following statement Kiley, K.A., Sehgel, A.R., Neth, S., Dolata J., Pike, E. … (2018). The effectiveness of guided imagery in treating compassion fatigue and anxiety of mental health workers. Social Work Research, 42(1): 33-43, doi.10.1093/swr/svx026
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identify the independent variable, the dependant variable and the unit of analysis of the following statement
Kiley, K.A., Sehgel, A.R., Neth, S., Dolata J., Pike, E. … (2018). The effectiveness of guided imagery in treating compassion fatigue and anxiety of mental health workers. Social Work Research, 42(1): 33-43, doi.10.1093/swr/svx026
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- Identify the independent variable and dependent variables."Survival rate of Red Lauan (Shorea negrosensis) and White Lauan (Shorea contorta) using Stinging Nettle (Urtica dioica) Leaf Extract"An article23 summarized results from the Nurses’ Health Study and the Health Pro- fessionals Follow-Up Study. The article reported (with RR = relative risk) that “Com- pared with nonregular use, regular aspirin use was associated with lower risk of overall cancer (RR 0.97; 95% CI 0.94, 0.99), which was primarily due to a lower incidence of gastrointestinal cancers, especially colorectal cancers (RR 0.81; 95% CI 0.75, 0.88).” Identify the response variables and the explanatory variable for these two results. Explain how to interpret the confidence interval about colorectal cancers. Would the association with overall cancer be considered (i) significant or non- significant? (ii) strong or weak? Explain. question 1 and 2Does exposure to classical music (through instrument lessons or concert attendance) improve a child's scholastic performance? In a study, researchers measured the amount of exposure to classical music for a group of children, along with their scores on the state’s academic proficiency exam. The explanatory variable in this study is:
- McAllister, et al. (2012) compared varsity football and hockey players with varsity athletes from noncontact sports to determine whether exposure to head impacts during one season have an effect on cognitive performance. In the study, tests of new learning performance were significantly poorer for the contact sport athletes compared to the noncontact sport athletes. The following table presents data similar to the results obtained in the study. Noncontact Athletes Contact Athletes 10 7 8 4 7 9 9 3 13 7 7 6 6 10 12 2 Are the neurological test scores significantly lower for the contact athletes than for the noncontact athletes in the control group? Use a one-tailed test with α = .05. Compute the value of r² (percentage of variance accounted for) for these data.A research organization has collected the following data on household size and telephone ownership for 160 U.S. households. At the 0.05 level, are the two variables independent? Based on a critical value, what is your conclusion?A Canadian study measuring depression level in teens (as reported in the Journal of Adolescence, vol. 25, 2002) randomly sampled 112 male teens and 101 female teens, and scored them on a common depression scale (higher score representing more depression). The researchers suspected that the mean depression score for male teens is higher than for female teens, and wanted to check whether data would support this hypothesis. What conclusion can you draw from the output? The data provide sufficient evidence to reject H0 and to conclude that the mean depression score for male teens is larger than that of female teens. The data provide sufficient evidence to conclude that male and female teens do not differ in mean depression score. The data do not provide sufficient evidence to conclude that the mean depression score of male teens is larger than that of female teens. The data do not provide sufficient evidence to reject H0, so we accept it, and conclude that male and female teens do…
- Process Capability. R. Morris and E. Watson studied various aspects of process capability in the paper “Determining Process Capability in a Chemical Batch Process” (Quality Engineering, Vol. 10(2), pp. 389–396). In one part of the study, the researchers compared the variability in product of a particular piece of equipment to a known analytic capability to decide whether product consistency could be improved. The following data were obtained for 10 batches of product. 30.1 30.7 30.2 29.3 31.0 29.6 30.4 31.2 28.8 29.8 Construct a stem-and-leaf diagram for these data with a. one line per stem.b. two lines per stem.c. Which stem-and-leaf diagram do you find more useful? Why?High levels of blood sugar are associated with an increased risk of type 2 diabetes. A levelhigher than normal is referred to as “impaired fasting glucose.” The article “Association ofLow-Moderate Arsenic Exposure and Arsenic Metabolism with Incident Diabetes andInsulin Resistance in the Strong Heart Family Study” (M. Grau-Perez, C. Kuo, et al.,Environmental Health Perspectives, 2017, online) reports a study in which 47 of 155 peoplewith impaired fasting glucose had type 2 diabetes. Consider this to be a simple randomsample. a) Find a 95% confidence interval for the proportion of people with impaired fasting glucose who have type 2 diabetes. b) Find a 99% confidence interval for the proportion of people with impaired fasting glucose who have type 2 diabetes. c) A doctor claims that less than 35% of people with impaired fasting glucose have type 2 diabetes. With what level of confidence can this claim be made?A study by Bettmann (2007) published in the Journal of the American Psychoanalytic Association assessed whether the attachment relationships between adolescents and their parents changed as a result of a residential wilderness treatment experience for the adolescents. Participants completed the Adolescent Attachment Questionnaire at the start and at the end of the wilderness program. Which statistical test should be used to determine whether the wilderness treatment affected attachment relationships? a. dependent-samples t test b. z test c. independent samples t-test d. one-sample t test
- A sports psychologist was interested in the effects of a six-week imagery intervention on an athlete's ability to execute a sport-specific skills such penalty taking in football. How mightyou define the imagery intervention variable?In a study reported in the American Journal of Clinical Nutrition, young men who drank fat-free milk after exercising gained 40% more muscle mass than those who drank a soy beverage after exercising. Fat-free milk drinkers gained 60% more muscle mass than those who consumed a sweetened sports drink. What is the response variable in this study? What is the explanatory variable in this study? What is the role – type classification of the variables in this study?A study was conducted to assess the association between certain pollutants/behaviors and respiratory function. The response measured was chronic respiratory disease status where subjects were assigned to one of four possible categories (Level 1 = no symptoms, Level 2 = cough or phlegm ≤ 3 months per year, Level 3 = cough or phlegm > 3 months per year, Level 4 = cough or phlegm and shortness of breath > 3 months per year). The explanatory variables of interest are Air Pollution (air = low, high), Job Exposure to Pollution (exposure = no, yes), and Smoking Status (smoking = non, ex, current). The SAS data step for this data set is given below: Construct a proportional odds model using level as the response variable. Select only the appropriate predictors in the final model. After the final model is constructed, compare each level of response against the level 1 symptom group. Based on the final model, write a report about your findings – include hypotheses,…