Dr. Jimenez is interested in the relationship between depression in adulthood and childhood emotional trauma. He...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Dr. Jimenez is interested in the relationship between depression in adulthood and childhood emotional trauma. He hypothesizes that adults who are depressed may have experienced emotional trauma, such as emotional abuse, earlier in life which predisposed them to developing depression as adults. In preparation to conduct this research, he decides to create his own questionnaire that will measure early childhood trauma (the Childhood Emotional Trauma Questionnaire; CETQ) where he has adults respond to 10 questions (1-10 point scale) about potentially emotionally traumatic events in their childhoods. When he gives the CETQ to a sample of 30 adults (Time 1), and then gives the measure to the same 30 adults again 3 weeks later (Time 2), he finds a correlation of .75 between the two scores. The split-half correlation coefficient for the CETQ is .73 before the Spearman-Brown Formula is applied, while the Cronbach's coefficient alpha is .70 at Time 1. The standard deviation of Time 1 scores is 7.5. Apply the Spearman-Brown Formula and obtain a corrected split-half correlation coefficient for the CE TQ. Corrected split-half correlation coefficient = (round to two decimal places) Based on the value of Cronbach's coefficient alpha, % of the variability in the CETQ is attributable to true score variability % of the variability in the CETQ is attributable to error variability. Use the value of Cronbach's coefficient alpha (Time 1) and calculate the standard error of the measurement Standard error of the measurement = (round to one decimal place) A person scored 65 on the CETQ at Time 1. Find the 95% confidence interval for the person's score (Z = 1.96). Upper bound = (round to the nearest integer) Lower bound = (round to the nearest integer) Dr. Jimenez is interested in the relationship between depression in adulthood and childhood emotional trauma. He hypothesizes that adults who are depressed may have experienced emotional trauma, such as emotional abuse, earlier in life which predisposed them to developing depression as adults. In preparation to conduct this research, he decides to create his own questionnaire that will measure early childhood trauma (the Childhood Emotional Trauma Questionnaire; CETQ) where he has adults respond to 10 questions (1-10 point scale) about potentially emotionally traumatic events in their childhoods. When he gives the CETQ to a sample of 30 adults (Time 1), and then gives the measure to the same 30 adults again 3 weeks later (Time 2), he finds a correlation of .75 between the two scores. The split-half correlation coefficient for the CETQ is .73 before the Spearman-Brown Formula is applied, while the Cronbach's coefficient alpha is .70 at Time 1. The standard deviation of Time 1 scores is 7.5. Apply the Spearman-Brown Formula and obtain a corrected split-half correlation coefficient for the CE TQ. Corrected split-half correlation coefficient = (round to two decimal places) Based on the value of Cronbach's coefficient alpha, % of the variability in the CETQ is attributable to true score variability % of the variability in the CETQ is attributable to error variability. Use the value of Cronbach's coefficient alpha (Time 1) and calculate the standard error of the measurement Standard error of the measurement = (round to one decimal place) A person scored 65 on the CETQ at Time 1. Find the 95% confidence interval for the person's score (Z = 1.96). Upper bound = (round to the nearest integer) Lower bound = (round to the nearest integer)
Expert Answer:
Answer rating: 100% (QA)
The Corrected splithalf correlation coefficient where r is the correlation between Time 1 and Time 2 ... View the full answer
Related Book For
Applied Statistics for Public and Nonprofit Administration
ISBN: 978-1285737232
9th edition
Authors: Kenneth J. Meier, Jeffrey L. Brudney, John Bohte
Posted Date:
Students also viewed these accounting questions
-
A taxi company is interested in the relationship between mileage, measured in miles per gallon, and the age of cars in its fleet. The 12 fleet cars are the same make and size and are in good...
-
A researcher is interested in the relationship between political participation (X) and years of education (Y). After selecting a random sample of people over the age of 18, he ranked them in terms of...
-
A real estate agent is interested in the relationship between the number of lines in a newspaper advertisement for an apartment and the volume of inquiries from potential renters. Let volume of...
-
Prove that there exist two languages A and B that are Turing-incomparablethat is, where A T B and B T A.
-
Recent advances in cell phone screen quality have enabled the showing of movies and commercials on cell phone screens. But according to the New York Times, advertising is not as successful as movie...
-
The ledger of Lazdowski Marketing Services has the following account balances at the company's year end, October 31, 2017: Instructions (a) Prepare a trial balance, with the accounts arranged in...
-
A liquid feed that is \(48 \mathrm{wt} \% \mathrm{~m}\)-xylene and \(52 \mathrm{wt} \%\) o-xylene is separated in a fractional extractor (Figure \(13-5\) ) at \(25^{\circ} \mathrm{C}\) and \(101.3...
-
Speedy Packn Mail completed the following transactions during 2016: Nov. 1 Paid $5,200 store rent covering the four-month period ending February 28, 2017. 1 Paid $9,600 insurance covering the...
-
Question 1 (answer all parts of the question) a. Eagle Metals, an all-equity firm, is financed with 50 million shares outstanding. Its current share price is 30 per share.Eagle Metals has recently...
-
1- A client comes to your office. Madonna was born in Argentina in 1987 to an Argentinean father and Canadian mother. They moved here when she was young. She now has some questions for you. A simple...
-
In Exercises 5-12, identify whether the given value is a statistic or a parameter. 5. Brain Volume The average (mean) volume of the brains included in Data Set 9 "IQ and Brain Size" in Appendix B is...
-
According to Drury ( 2 0 2 1 ) , allowing managers and employees to participate in the setting of performance target has several advantages. Explain three advantages.Discuss how the difficulty in...
-
Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. (Simplify your f(x) = 6 - 2x Step 1: Step 2: Step 3: Step 4: f'(x) = lim h0 f(x + h) =...
-
Common stock is valued at $1,000,000 and costs $0.20. Bonds are valued at $850,000 and cost $0.04. Preferred stock is valued at $500,000 and costs $0.06. The tax rate is 40%. What is the pre-tax WACC?
-
A machine has a first cost of P 7 3 5 0 0 and a salvage value of P 3 5 0 0 at the end of its useful life of 8 years. Evaluate the depreciation of the machine at during the 5 th year using the...
-
describe why customer intimacy as an HR strategy would have the greatest probability of success? Explain why
-
cex(y+1), x > 0, y > 0. = xe The joint probability density function of X and Y is given by f(x, y) =
-
The Ranch 888 Noodle Company sells two types of dried noodles:ramen, at $6.50 per box, and chow fun, at $7.70 per box. So farthis year, the company has sold a total of 110,096 boxes ofnoodles,...
-
The state of Wisconsin is interested in predicting their revenue from the state income tax. The dependent variable is the amount of revenue from the state income tax in millions. X1 is a time...
-
As an analyst for the Overseas Private Investment Corporation, you are required to report to Congress about guaranteed loans to companies doing business in Central American countries. You do not have...
-
The Bureau of Administration is concerned with high levels of employee absenteeism. Last year, the average employee missed 12.8 workdays. This year, there is an experimental program in which the...
-
Job Cost Journal Entries Holiday Manufacturing had the following inventories at December 31, 2018, the end of its fiscal year: During January 2019, the following transactions occurred: 1. Purchased...
-
Job Cost Journal Entries Prior to the beginning of 2019, Lowe Company estimated that it would in- cur \($176,000\) of manufacturing overhead cost during 2019, using 16,000 direct labor hours to...
-
Job Cost Journal Entries and T Accounts Following are certain operating data for Durango Manu- facturing Company for January 2019: Total sales were \($1,800,000\), on which the company earned a 40%...
Study smarter with the SolutionInn App