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Do the DRDP instruments have any validity or reliability research?

April 26, 2017instruments reliability Research validity

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Do the DRDP instruments have any validity or reliability research?

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10 Posted

The Desired Results Developmental Profile-Revised (DRDP-R) pilot study, field-test study, and calibration study focused data-collection efforts on instrument reliability and validity in the forms of (a) internal consistency reliability, (b) inter-rater reliability, (c) content validity, and (d) internal construct validity (AERA/APA/NCME, 1999). Reliability is calculated separately for the six DRDP measurement scales (Self/Soc, Reg/SH, Lrn/Cog, Lang/Lit, Math, and Motor) which are each composed of one or two of the ten Desired Results Developmental Profile-Revised (DRDP-R) Indicators. The internal consistency reliabilities for all six measurement scales are high—in the range of .86 to .95. The inter-rater reliabilities are also high—in the range of .87 to .90. Content validity for the Desired Results Developmental Profile-Revised (DRDP-R) is grounded in the effort to give DRDP Indicators a developmental perspective based in research evidence and best professional practice. Evidence for