Displays various statistical information for each question. This report is useful for gaining a better understanding of the distribution of respondents’ answers and how they relate to the entire population.
Description
The Item Statistics report displays the following statistics for each question:
Question: sample size and number excluded
Summary Statistics: mean, variance, standard deviation and standard error
Descriptive Statistics: skewness, kurtosis, T value, mean absolute deviation
Percentiles: 25th and 75th percentiles, median and inter quartile range
Values: minimum, maximum and range
Confidence Intervals: upper and lower bound estimates for a 95% and for a 99% confidence interval
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