sychiatrists believe there is a difference in learning self-care skills between two techniques. For 6 months the psychiatrists worked with mentally impaired individuals in which half were taught self-care skills through video imitation and the other half through physical guidance. At the end of the 6 months, individuals were asked to independently perform the self-care task and were rated on the level of required assistance where a higher score indicates more assistance. What can be concluded with ? = 0.10? The rating data are below. video imitation physical guidance 10 10 17 11 11 14 11 14 16 15 13 16 17 19 21 16 14 20 a) What is the appropriate test statistic? b) Condition 1: Condition 2: c) Obtain/compute the appropriate values to make a decision about H0. Critical Value = ; Test Statistic = Decision: d) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below. [ , ] e) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or select "na" below. d = ; Magnitude: r2 = ; Magnitude: f) Make an interpretation based on the results. Self-care skills improve when learned through physical guidance.Self-care skills improve when learned through video imitation. There is no significant self-care difference between video imitation and physical guidance.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Psychiatrists believe there is a difference in learning self-care skills between two techniques. For 6 months the psychiatrists worked with mentally impaired individuals in which half were taught self-care skills through video imitation and the other half through physical guidance. At the end of the 6 months, individuals were asked to independently perform the self-care task and were rated on the level of required assistance where a higher score indicates more assistance. What can be concluded with ? = 0.10? The rating data are below.
| video imitation | physical guidance |
| 10 10 17 11 11 14 11 14 16 |
15 13 16 17 19 21 16 14 20 |
a) What is the appropriate test statistic?
b)
Condition 1:
Condition 2:
c) Obtain/compute the appropriate values to make a decision about H0.
Critical Value = ; Test Statistic =
Decision:
d) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below.
[ , ]
e) Compute the corresponding effect size(s) and indicate magnitude(s).
If not appropriate, input and/or select "na" below.
d = ; Magnitude:
r2 = ; Magnitude:
f) Make an interpretation based on the results.
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