title: Adult norms and test-retest reliability for the Months Backward test: durational and response accuracy measures.
abstract: The aim of this study was to present adult norms and to estimate the test-retest reliability for durational and response accuracy measures on the word sequence production test, Months Backward. A total of 216 neurologically intact adults (aged 18-88) stratified by sex, age, and education took the test at maximum speed. Errors and speech duration were recorded. A retest was conducted with 40 participants after 3 weeks. Altogether 94% of the participants completed the test without error. Errors were associated with slow performance. Duration was predicted by years of education (beta = -0.39) and self-reported dyslexia (beta = 0.19). The test-retest reliability was 0.82 for duration and 0.97 for errors. A regression formula for adjustment of logarithmically transformed duration scores is provided.
authors.affiliation: Department of Neuroscience, Speech-Language Pathology, Uppsala University, Uppsala, Sweden. per.ostberg@neuro.uu.se
authors.forename: Per
authors.initials: P
authors.lastname: Östberg
authors.forename: Viktoria
authors.initials: V
authors.lastname: Hansson
authors.forename: Sofia
authors.initials: S
authors.lastname: Häägg
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001288:Attention; D003071:Cognition; D006259:Craniocerebral Trauma / Q000523:psychology; D004410:Dyslexia / Q000523:psychology; D004522:Educational Status; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D011939:Mental Recall; D008875:Middle Aged; D015999:Multivariate Analysis; D015588:Observer Variation; D011237:Predictive Value of Tests; D012016:Reference Values; D015203:Reproducibility of Results; D013068:Speech Production Measurement / Q000592:standards*; D013548:Sweden; D013997:Time Factors; D055815:Young Adult