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Statistically Speaking
Shape of Things to Come
Stuck in the Middle
Home on the Range
Trial and Error
100
Collection and presentation of data used to explain characteristics of variables found in a sample
What is descriptive statistics?
100
Normal data distribution representation
What is a bell-shaped curve?
100
The mode, the median, and the mean
What is the measures of central tendency?
100
Difference between the maximum andminimum values in a data set.
What is the range?
100
When elements in the sample do not adequately represent the population.
What is sampling error?
200
Focuses on the process of selecting a sample & using the information to make generalizations to a population.
What is inferential statistics?
200
Asymmetrical distribution of data
What is skewed?
200
The mode of the data set (1,1,1,2,2,3,4,4)
What is "1"?
200
A measure representing the percentage of cases that a given value exceeds?
What is a percentile?
200
It states that there is no relationship between the variables.
What is a null hypothesis?
300
Use of statistics to describe the relationship between two variables
What is bivariate analysis?
300
The peak is off-centered and the tail points to the left toward the low score values.
What is negatively skewed?
300
The mean is commonly called this.
What is the average?
300
Measure of variability to determine the number of data values within a specific interval in a normal distribution.
What is standard deviation?
300
Occurs when researchers accept the null hypothesis when it should have been rejected.
What is a Type II error?
400
The percentage of subjects in a sample whose scores fall into a specific group and the number of scores in that group.
What is percentage distributions?
400
Highly uniform data have a high peak. Highly variable data have a low or flat peak.
What is kurtosis?
400
If the number of scores is uneven, exactly 50% of the scores are above and exactly 50% are below this.
What is the median?
400
The median divides the data into two halves. The range of the middle 50% of this data is
What is the semiquartile range?
400
0.05 is the most commonly used in nursing research.
What is the alpha level?
500
Use these terms to describe the single variable tubal pregnancy risk in women who have had a tubal ligation.
What is descriptive statistics & univariate analysis?
500
Twenty students take a test. One student scores very low. The low score pulls down the mean and pulls the tale of distribution to the left.
What is negatively skewed?
500
If a set of scores on a pain scale administered to five patients is 3, 5, 7, 8, 10, we would pick 7.
What is the median?
500
For every sample, 99.7% of the data fall within three standard deviations of the mean.
What is the Rule of 68-95-99.7?
500
Inferential statistical test used when more than two groups are being compared.
What is ANOVA?