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Item reliability for the Griffiths scales of mental development
Author(s) -
HANSON RUTH
Publication year - 1982
Publication title -
child: care, health and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.832
H-Index - 82
eISSN - 1365-2214
pISSN - 0305-1862
DOI - 10.1111/j.1365-2214.1982.tb00278.x
Subject(s) - psychology , reliability (semiconductor) , audiology , test (biology) , observer (physics) , rating scale , developmental psychology , clinical psychology , medicine , paleontology , power (physics) , physics , quantum mechanics , biology
Summary As a preliminary to the revision of the Griffiths scales, the 498 items constituting the original test were studied in terms of inter‐observer agreement over the scoring, using videotapes of tests, given to children aged from 2 months to 7 years, and large scoring panels. Fifty‐seven items failed to be administered or scored adequately often. One hundred and twelve were found to be unreliable on one in three administrations and only 23 were unreliable on two or three administrations. Among items scored sufficiently often, 88% of all administrations were reliable. Subscale differences were not as expected since the locomotor, personal—social and hearing and speech scales fared no worse than hand—eye coordination. Inter‐observer agreement varied with the age of the children. Subscale weaknesses were examined in terms of the age ranges most concerned.