Recent research indicates that the effectiveness ofantidepressant medication is directly related to the severityof the depression (Khan, Brodhead, Kolts & Brown, 2005).Based on pretreatment depression scores, patients weredivided into four groups based on their level of depression.After receiving the antidepressant medication, depressionscores were measured again and the amount ofimprovement was recorded for each patient. The followingdata are similar to the results of the study.LowHighModerate ModerateModeratelySevereSevere02.62.72.71.72.53.23.32.233.25.20.61.83.81.51.91.93.85.91.31.22.42.9From this table, conduct an one-way ANOVA. Calculate theF-ratio and p-value. Be sure to round your answers tothree decimal places. Assume all population and ANOVArequirements are met.F-ratio:p-value:What is your final conclusion? Use a significance level ofαπ 0.02.There is not enough evidence to determine adifference between the treatments.There is sufficient evidence that there exists asignificant difference between treatments.

Let A=Low Moderate levelLet B=High Moderate levelLet C=Moderately SevereLet D=Severe In this…

Answered: Recent research indicates that the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A clinical psychologist is investigating the relationship between sleep and feelings ofanxiety. For a sample of 15 individuals, he asks each participant to indicate how many hours theytypically sleep each night and each participant also completes an anxiety assessment. The followingdata is obtained:Hours of sleep: M=6.0 SS=16.0Anxiety scores: M=8.0 SS=64.0SP = - 20.0 b. Describe the nature of the relationship between these two variables
Respond to the question with a concise and accurate answer, along with a clear explanation and step-by-step solution, or risk receiving a downvote.
Which of the following designs is best for testing a causal relationship? Cross-sectional Ecological Case-control Experimental trials Case report/case series
Help please!!
A special education teacher wants to test the effects of online learning. A class of ten children are given traditional instruction for the first month of class. The amount of student-teacher interaction was assessed—i.e., the average number of seconds it took for the student to respond when called upon. Beginning the second month, laptop computers are provided to each student. The data below show the averages for each student. Did it take significantly longer for the students to respond when using the laptop. Test the research using a two-tailed test and α = .05. Child no.. Traditional. With lap-top 1. 2. 3 2. 5. 4 3. 7. 9 4. 2. 3 5. 3 . 5 6. 7 . 7 7.…
Read through this scenario and look at the data that was collected. State the null and all possible research hypotheses. Review the results below (I used SPSS) and answer the questions that follow. Scenario: A researcher wants to see if gender and / or income affects the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help. The independent variables are gender, income, and the interaction of gender and income. The dependent variable is total help. He wants to know if one or both factors – or the interaction of the two - affects the total amount of help offered. Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA. His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect. The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…
A study was done to assess the effectiveness of Acceptance and Commitment Therapy for people with generalized anxiety disorder. The reserachers wanted to know if the treatment decreased or increased the reported levels of anxiety. Six participants were measured before therapy, and after therapy. The dependent variable was the number of reported symptoms. They collected the following data: Patient Pre Post 1 21 15 2 24 15 3 21 17 4 26 20 5 32 17 Which statistical test should be used to measure this? Explain why you selected this test?
Jason is interested in studying the effect of gender and social media usage on loneliness in college students. He obtained data from 30 men (10 men who had high social media usage and 10 men who had moderate social media usage and 10 who did not use social media much) and 30 women volunteers (10 women scored high on social media usage, 10 women moderately used the social media, and 10 scored low on social media usage) in their freshman year. Jason administered the Revised UCLA 20 item loneliness scale to measure subjective feelings of loneliness and social isolation to these 60 participants. A high score on the scale indicates higher feelings of loneliness. Participants rate each item on a scale from 1 (Never) to 4 (Often). There are two independent variables in the study (social media usage and gender) and one dependent variable, which is loneliness. The design for the study can be described as 3*2 ANOVA, number of levels of social media usage (low, moderate, high social media use)…
What is the summary of the overall model of the data shown in question 1? Is it one that you would trust from a statistical standpoint? specifically why ?
Using the same anti-venom study, answer the following questions. A study was done on children (6 months to 18 years of age) who had (nonlethal) scorpion stings. Researchers wanted to know the effectiveness of a new anti-venonm. Each child was randomly assigned to receive a shot of the anti-venom or a placebo shot. Researchers recorded whether or not their condition improved over the next four hours. a. Identify the population for the study. b. Identify the sample for the study. (HINT: See #1) c. Was this an observational study or a controlled experiment? Explain how you know. d. Assuming the rest of the study was well-designed, use your answers to discuss whether it would be reasonable to conclude that the new anti-venom is effective at treating nonlethal scorpion stings in children. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). TTTTParagraph Arial 3 (12pt) 三,三,T. 回i:公 E=E= = T T, U HTML CSS O Mashups
The chief psychologist at a state prison has developed a rehabilitation program for inmates convicted of violent crimes against females. All of the prisoners have been rated on the frequency of their attendance at sessions (the program is voluntary) and have completed a series of tests which measures their level of hostile and aggressive feelings towards females. Are less hostile attitudes associated with frequent attendance at sessions? Overall, does the program work? Hostility Towards Women by Frequency of Attendance FREQUENCY OF ATTENDANCE HOSTILITY Low High Totals Low 60 144 204 High 80 31 111 Totals 140 175 315 Calculate the column percentages and gamma for the table. Provide a sentence or two interpreting the relationship in terms of existence, strength, and pattern or direction.
Swearing is a common, almost reflexive, response to pain. Whether you knock your shin into the edge of a coffee table or smash your thumb with a hammer, most of us respond with a streak of obscenities. One question, however, is whether swearing has any effect on the amount of pain that you feel. To address this issue, Stephens, Atkins, and Kingston (2009) conducted an experiment comparing swearing with other responses to pain. In the study, participants were asked to place one hand in icy cold water for as long as they could bear the pain. Half of the participants were told to repeat their favorite swear word over and over for as long as their hands were in the water. The other half repeated a neutral word. The researchers recorded how long each participant was able to tolerate the ice water. After a brief rest, the two groups switched words and repeated the ice water plunge. Thus, all the participants experienced both conditions (swearing and neutral) with half swearing on their first…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS