Special Education Rights Under IDEA: How the Process Works
Federal law gives eligible students with disabilities a right to a free appropriate public education. Here is how evaluations, IEPs and dispute procedures work, and what the data show.
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How Opinion Polls Work, and What the Margin of Error Means
A poll is a measurement of a small group used to estimate a large one. Here is how sampling, weighting and the margin of error work, and what a poll cannot tell you.
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