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: '''Secondary data''' is used to confirm the [[results]] of an [[experiment]] or [[investigation]] by checking that others can get similar [[results]]. ==Key Stage 4=====Meaning==='''Secondary Data''' is [[results]] taken from another, similar, [[investigation]] to your own. ===About Secondary Data===: '''Secondary data''' is used to confirm the [[results]] of an [[investigation]] are [[reproducible]].: '''Secondary data''' should be checked for its [[valid]]ity to the original [[investigation]] and the [[reliability]] of the source.