What Statistics Does the EIC Calculate?
The EIC computes
- effect size, a statistic that describes the magnitude of differences between
two groups or the impact of an intervention. Read More
- the improvement index, a statistic that translates the effect size
into differences in scores of the average student in terms of percentile ranks.Read More
- the probability that the effect size
would occur by chance. This statistic is calculated if the user knows the
number of students involved. Read More
NIFDI Technical Report 2016-2 gives more information on these statistics and
examples of their use and interpretation. Read More