Exercise 16 Questions to be graded
1. The researchers analyzed the data they collected as though it were at what level of measurement?- The correct answer is Interval/ratio.
a. Nominal
b. Ordinal
c. Interval/ratio
d. Experimental
2. What was the mean posttest empowerment score for the control group? - 97.12
3. Compare the mean baseline and posttest depression scores of the experimental group. Was this an expected Finding? Provide a rationale for your answer. The Experimental group’s mean depression baseline score(mean-14.00) was 0.64 points higher than its posttest mean score ( mean-13.36) because on the average the experimental group subjects scored higher on the baseline than after the end of the empowerment program. This was
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Provide a rationale for your answer. The self-care self-efficacy variable demonstrates the highest dispersion with the score of 14.88 on the baseline and 13.55 on the posttest SD score.
7. The mean (X—) is a measure of ____________ ______________ of a distribution while the SD is a measure of _______________________ of its scores. Both X
—
and SD are _______________________ statistics. The mean is the measure of Central tendency of a distribution while SD is a measure of dispersion of its scores. Both X and SD is descriptive statistics.
8. What was the mean severity for renal disease for the research subjects? What was the dispersion or variability of the renal disease severity scores? Did the severity scores vary significantly between the control and the experimental groups? Is this important? Provide a rationale for your answer. The mean severity for renal disease for the research subjects was 6.74 and the dispersion or variability of the renal disease severity score was 2.97. There was no differences in clinical and demographic characteristics of the patients between the groups, the data indicates homogeneity of subjects across the groups. This is important because the empowerment training needs to be the only difference between the two groups for a valid result.
9. Which variable was least affected by the empowerment program? Provide a rationale for your answer. The experimental subjects’ mean depression score showed 0.64
Standard deviation is important in comparing two different sets of data that has the same mean score. One standard deviation may be small (1.85), where the other standard deviation score could be quite large (10)(Rumsey,
Research results tell us information about data that has been collected. Within the data results, the author states the results are statistically significant, meaning that there is a relationship within either a positive and negative correlation. The M (Mean) of the data tells the average value of the results. The (SD) Standard Deviation is the variability of a set of data around the mean value in a distribution (Rosnow & Rosenthal, 2013).
6. When do the mean and median have the same value? 7. Describe the relationship between variance and standard deviation.
3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject.
9. If there were 32 subjects in the experimental group and 36 subjects in the control group, why is the income data only reported for 30 subjects in the experimental group and 34 subjects in the control group?
* 3. Compare the mean baseline and posttest depression scores of the experimental group. Was this an expected finding? Provide a rationale for your answer.
The standard deviation indicates that the difference between the actual number of M&Ms per bag and the mean number of M&Ms per bag is 2.0003.
Identify the difference of the intervention activity level for the clients ages 9 to 12 and the clients aged 13 to 16?
The statistical significance was documented from the analysis of variance for the scores from the outcome measures. The significance was recognised by the group (.01) as well as when the week and group were in contract (.00) during the treatment and follow-up. The statistics are significant as the values are from 0 at the 0.05 level; it occurs when the values of the confidence interval are on the zero side (Alladin, et al.2007).
Study: Outcomes of the changes. What are needed to improve? What are required to eliminate?
Answer each question with respect to your team’s specific choices for the research study (this means the study as your team has decided to analyze the data, which will not necessarily be the same as the originally designed study). If you don’t recall the statistical information from your prerequisite statistics class, you may need to read ahead to information in Week 5 to answer the statistical questions. See the related Muddy Concept presentations as well. (12 points total)
An ANOVA for linear regression analysis was performed to test if there were significant differences (see Table 6.1). The results showed that the interaction effect between seven constructs and the total health belief score was significant (f = 19284.073, p = 0.000). In accordance with the detailed correlation coefficients for the seven constructs listed in Table 6.2, the regression equation could be demonstrated as:
Of these 1786 participants, 927 of them completed an additional survey and psychosocial tests. 143 were adolescents and the remainder was adults. Each of these subsamples included 49% males, and the demographics roughly matched the census statistics. Each person was randomly assigned to one of three emotion conditions. The emotion conditions were angry, sad and afraid. The participants had to firstly
The dependent variable was defined as how people rated themselves when presented with, “I am good at managing unpredictable situations.” The scale was numbered 1-5, 5 meaning strong agreement and 1 meaning strong disagreement. The overall mean of the dependent variable was a 3.46. This places the mean above the neutral point and indicates that the group was in a slight agreement with the statement. The mean of the group that had none to few restrictions was a 3.57. In relation to the scale of measurement, this group was somewhat in agreement with the statement. This was also the highest mean of the predictor variables. This group agreed most that they are with the statement. The Several restrictions group had a mean of 3.48. This
A research must be systematic or orderly and sequential to procure a study’s exact goal and purpose. In presenting a problem, the reason why the study is conducted must be included. Since a research must be controlled, researchers must conduct field study and Observations after presenting a problem to test hypothesis and assumptions. Notes/permits and some necessary letters need to be implored in the study as a procedure. Since researchers chose primary data, some individuals or an entire section of class