1.
A dichotomous variable should be labeled as ____________ for quantitative data analysis.
2.
If a variable is measured in equal intervals and has a true zero, it should be labeled as ____________ for quantitative data analysis.
3.
If a researcher selects every 10th person, for a total of 100 subjects, from a list of 1,000 available subjects, the investigator has performed ________________ sampling.
4.
The equation (standard deviation/mean) is called the standard error of the mean and is used in the calculation of a 95% confidence interval.
5.
A stem and leaf diagram is very useful when data is measured on an ordinal scale.
6.
The JMP software package uses the t-distribution to calculate confidence intervals rather than the z-distribution when the sample size is small.
7.
6. A Shapiro-Wilk test that has a p-value of 0.03 would indicate that the variable of interest is not normally distributed.
8.
A distribution that is severely skewed to the right will have a mean that is larger than the median
9.
As the sample size goes up and the variance goes down, the 95% confidence interval becomes tighter (smaller).
10.
Each of the following statistical tests have an assumption of independence: Independent t-Test, Paired t-Test, Completely Random (CRD) ANOVA.
11.
Dr. John is conducting a study to predict the probability of being male or female (Y) based on the number of sarcomeres identified from a muscles biopsy (X). Dr. John should us e a Chi-square analysis for this investigation.
12.
To increase statistical power, you should decrease your alpha and increase your sample size.
13.
Power is related to all of the following except one, which one is it?
14.
In which part of the research paper should you talk about your limitations and weaknesses?
15.
When performing a statistical analysis, if your sample size is larger than 30, what can you use to defend your data?
16.
ICC is used to measure _________; PPMCC is used to measure ___________.
17.
What is the null hypothesis?
A.
The hypothesis that there is a difference.
B.
The hypothesis that there is no change.
18.
We will be confident a true difference exits when:
A.
We have a large error and a larger treatment effect
B.
We have a small error and small treatment effect
C.
We have a large treatment effect and small error
19.
Which of the following is not true about a confidence interval?
A.
As SEM decreases, the CI decreases
B.
It is an interval Estimate
C.
The bigger the N, the wider the CI
D.
The larger the alpha level, the wider the CI
E.
The smaller the n, The wider the CI
20.
If we have a small sample size, which distribution should we use?
21.
_____ + s/ square root of n x 100
22.
Which of the following statements is true?
A.
Standard deviation is the variance squared.
B.
Variance is standard deviation squared.
C.
We are most interested in the variance.
23.
Grading a MMT is an example of which type of scale:
24.
Which of the following is not a parametric assumption?
25.
Mean, Mode, and median are all measures of central tendency and when a distribution is skewed, we should use the median.