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We often assume the observations (rows in our dataset) are independent. A clear violation of independent observations occurs when we have more than one row for a given individual such as if we gather the same measurements at many different times for individuals in our study or if individuals are paired or matched in some way.

What is Data?

Published: Jun 13th, 2013

View Lecture Slides with Transcript – What is Data? Video (2:50) This document is linked from What is Data?

What is Data?

What is Data?

Published: Jun 12th, 2013

What do we really mean by data? Individuals, Observations, or Cases Independent Observations Variables Various Uses of the Term INDEPENDENT in Statistics CO-1: Describe the roles biostatistics serves in the discipline […]