Question

In: Statistics and Probability

A child psychologist treats four children who are afraid of snakes with a behavioral modification procedure...

A child psychologist treats four children who are afraid of snakes with a behavioral modification procedure called systematic desensitization. In this procedure, children were slowly introduced to a snake over four treatment sessions. Children rated how fearful they are of the snake before the first session (baseline) and following each treatment session. Higher ratings indicated greater fear. The hypothetical data are listed in the table.

Sessions
Baseline 1 2 3 4
7 7 5 4 3
7 6 6 4 4
6 6 7 7 3
7 7 5 4 3

(a) Complete the F-table. (Round your value for F to two decimal places.)

Source of
Variation		 SS df MS Fobt
Between
groups
Between
persons		   
Within
groups (error)		   
Total      


(b) Compute a Bonferroni procedure and interpret the results. (Assume experimentwise alpha equal to 0.05.)

Ratings of fear significantly decreased from Session 1 to Session 4. Ratings of fear also significantly decreased from Session 2 to Session 4.

Ratings of fear significantly decreased from baseline to Session 3. Ratings of fear also significantly decreased from Session 1 to Session 4.     

Ratings of fear significantly decreased from baseline to Session 3. Ratings of fear also significantly decreased from baseline to Session 4.

None of the pairwise comparisons are significant.
Ratings of fear significantly decreased from baseline to Session 4.

Solutions

Expert Solution

Answer:

b) Ratings of fear significantly decreased from Session 1 to Session 4. Ratings of fear also significantly decreased from Session 2 to Session 4.

NOTE:: I HOPE YOUR HAPPY WITH MY ANSWER....***PLEASE SUPPORT ME WITH YOUR RATING...

***PLEASE GIVE ME "LIKE"...ITS VERY IMPORTANT FOR ME NOW....PLEASE SUPPORT ME ....THANK YOU

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A psychologist is investigating the hypothesis that children who grow up as the only child in...
A psychologist is investigating the hypothesis that children who grow up as the only child in the household develop different personality characteristics than those who grow up with at least one sibling. A sample of n = 49 only children is obtained and each child is given a standardized personality test. For the general population, scores on the test from a normal distribution with a mean of µ = 50 and a standard deviation of σ = 15. If the...
Child Psychologist David Elkind has called today's child the "hurried child." Do you believe that children...
Child Psychologist David Elkind has called today's child the "hurried child." Do you believe that children today are stressed and over scheduled? Why, or why not?
A pediatrician treats many children in her practice. Among the children who are currently 4 years...
A pediatrician treats many children in her practice. Among the children who are currently 4 years old, the average height is 39.5 inches, with an SD of 2.1 inches. A histogram of the heights approximately follows the normal curve. (a) About what percentage of the 4 year olds are between 35 and 40 inches tall? (b) Approximately 95% of the 4 year olds are between ________ and _________ inches tall. (c) Find the 80th percentile of the heights. _________________ inches
Dr. Lillian Fok, a New Orleans psychologist, specializes in treating patients who are agoraphobic (i.e., afraid...
Dr. Lillian Fok, a New Orleans psychologist, specializes in treating patients who are agoraphobic (i.e., afraid to leave their homes). The following table indicates how many patients Dr. Fok has seen each year for the past 10 years. It also indicates what the robbery rate was in New Orleans during the same year: Year12345678910Number of Patients36323940405660555961Robbery Rate per 1,000 Population57.861.473.075.781.188.6101.594.2103.2116.2The simple linear regression equation that shows the best relationship between the number of patients and the robbery rate is (round your...
Dr. Lillian​ Fok, a New Orleans​ psychologist, specializes in treating patients who are agoraphobic​ (i.e., afraid...
Dr. Lillian​ Fok, a New Orleans​ psychologist, specializes in treating patients who are agoraphobic​ (i.e., afraid to leave their​ homes). The following table indicates how many patients Dr. Fok has seen each year for the past 10 years. It also indicates what the robbery rate was in New Orleans during the same​ year:                                                                                                                                                                       Year 1 2 3 4 5 6 7 8 9 10 Number of Patients 35 33 39 40 42 56 58 55 58 61 Robbery Rate...
Dr. Lillian​ Fok, a New Orleans​ psychologist, specializes in treating patients who are agoraphobic​ (i.e., afraid...
Dr. Lillian​ Fok, a New Orleans​ psychologist, specializes in treating patients who are agoraphobic​ (i.e., afraid to leave their​ homes). The following table indicates how many patients Dr. Fok has seen each year for the past 10 years. It also indicates what the robbery rate was in New Orleans during the same​ year.                                                                                                                                           Year 1 2 3 4 5 6 7 8 9 10 Number of Patients 37 34 40 41 41 54 60 53 58 62 Robbery Rate...
Dr. Lillian​ Fok, a New Orleans​ psychologist, specializes in treating patients who are agoraphobic​ (i.e., afraid...
Dr. Lillian​ Fok, a New Orleans​ psychologist, specializes in treating patients who are agoraphobic​ (i.e., afraid to leave their​ homes). The following table indicates how many patients Dr. Fok has seen each year for the past 10 years. It also indicates what the robbery rate was in New Orleans during the same​ year:                                                                                                                                                                       Year 1 2 3 4 5 6 7 8 9 10 Number of Patients 3636 3434 4141 4040 4040 5656 5858 5353 5959 6262 Robbery Rate...
A child psychologist wishes to estimate the percentage of fathers who watch their preschool-aged child when...
A child psychologist wishes to estimate the percentage of fathers who watch their preschool-aged child when the mother works. What size sample should be obtained if she whises the estimate to be within 3 percentage points with 97% confidence if A. she uses a 2005 estimate of 82% obtained from the U.S Census Bureau? Z= n= B. She does not use any prior estimates. n=
A child psychologist hypothesizes that locus of control predicts motivation in pre-adolescent children. To investigate this,...
A child psychologist hypothesizes that locus of control predicts motivation in pre-adolescent children. To investigate this, the psychologist has a sample of pre-adolescent participants fill out a questionnaire that measures locus of control and motivation. Below are the data. What can the psychologist conclude with α = 0.05? PLEASE ANSWER AS QUICKLY AS POSSIBLE Locus Motivation 15 16 15 14 11 12 18 13 21 23 15 14 22 13 21 14 a) What is the appropriate statistic? ---Select--- na...
A child psychologist is interested in the effects of diet on behavior. He places four groups...
A child psychologist is interested in the effects of diet on behavior. He places four groups of eight children on different diets that vary in their level of sugar content. He scores the amount of activity in the children on a scale from 1 to 10. The data appear in the file DIET.csv. Use a 1-way ANOVA and (if appropriate) a S-N-K post hoc test to determine if sugar effects behavior and which levels of sugar produce different activity levels...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT