Multiple comparison methods: Establishing guidelines for their valid application in neuropsychological research

Cicchetti, Domenic V.

doi:10.1080/01688639408402625

Cited by 109 publications

(80 citation statements)

References 62 publications

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“…In addition, a two-way analysis of variance (ANOVA) was used to simultaneously examine the relationship of thalamic volume with subject and TBV groups. For analyses reaching significance, post hoc testing was performed (Tukey multiple comparison test: Cicchetti, 1994;Tsatsanis et al, 2003). Significance levels were defined using conventional levels (p < 0.05).…”

Section: Discussionmentioning

confidence: 99%

Brief Report: Abnormal Association Between the Thalamus and Brain Size in Asperger’s Disorder

Hardan

Girgis

Adams

et al. 2007

J Autism Dev Disord

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The objective of this study was to examine the relationship between thalamic volume and brain size in individuals with Asperger's disorder (ASP). Volumetric measurements of the thalamus were performed on MRI scans obtained from 12 individuals with ASP (age range: 10-35 years) and 12 healthy controls (age range: 9-33 years). A positive correlation was found between total brain volume and thalamic size in controls, but not in ASP subjects. This occurred in the absence of differences in mean thalamic volumes between the study groups. Findings from this investigation point to an abnormal relationship between the thalamus and its projection areas in ASP and are consistent with similar studies in autism, supporting that these disorders are qualitatively similar and possibly quantitatively different.

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Section: Discussionmentioning

confidence: 99%

Brief Report: Abnormal Association Between the Thalamus and Brain Size in Asperger’s Disorder

Hardan

Girgis

Adams

et al. 2007

J Autism Dev Disord

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“…Stability was evaluated using test–retest reliability based on the intraclass correlation coefficient (ICC) with cut-offs ≤0.40 for poor , 0.41–0.59 fair , 0.60–0.74 good , ≥0.75 excellent 19. The estimated variance components derived from a one-way random effects model were used to calculate ICCs 20.…”

Section: Methodsmentioning

confidence: 99%

Identifying hopelessness in population research: a validation study of two brief measures of hopelessness

et al. 2014

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ObjectiveHopelessness is an important construct in psychosocial epidemiology, but there is great pressure on the length of questionnaire measures in large-scale population and clinical studies. We examined the validity and test–retest reliability of two brief measures of hopelessness, an existing negatively worded two-item measure of hopelessness (Brief-H-Neg) and a positively worded version of the same instrument (Brief-H-Pos).DesignCohort study.SettingControl arm of the UK Collaborative Trial of Ovarian Cancer Screening.ParticipantsA non-clinical research-based sample of 5000 postmenopausal women selected from 56 512 participants.Primary and secondary outcome measuresSpearman's rank correlation of brief measures of hopelessness with the Beck Hopelessness Scale (BHS). Spearman's rank correlation with the Centre for Epidemiological Studies Depression Scale (CES-D) and change in mean score on repeat testing.MethodsTwo short hopelessness measures, a negatively worded brief measure of hopelessness (Brief-H-Neg) and a positively worded brief measure of hopelessness (Brief-H-Pos), were administered by postal questionnaire to 5000 women together with the 20-item BHS and 20-item CES-D. The Brief-H-Neg and Brief-H-Pos were readministered to 500 women after a 2-week interval.Results2413 postmenopausal women (mean age 68.9 years) completed the questionnaire. The Brief-H-Neg and Brief-H-Pos correlated 0.93 and 0.87 with the BHS after correction for attenuation and their association with the CES-D mirrored that seen with the BHS (Spearman's rank correlation 0.88 and 0.68, respectively). There was no change in mean scores on the two measures with repeat testing in the 433 women who completed them and test–retest reliability was good (intraclass correlations Brief-H-Neg 0.67 and Brief-H-Pos 0.72).ConclusionsThese findings provide support for the validity of the Brief-H-Neg and Brief-H-Pos. These brief measures are likely to be useful in large population studies assessing hopelessness.Trial registration numberNCT00058032.

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“…Stability was evaluated using test-retest reliability based on Intraclass Correlation Coefficients (ICC) (Shrout and Fleiss 1979). We used Cicchetti's (1994) recommendations for interpreting ICC's as poor (≤.40), fair (.41-.59), good (.60-.74), and excellent (≥.75) (Cicchetti 1994), which have been adopted in substance use research (Selin 2003;Tonigan and Miller 2002;Britton and Conner 2007). One-way random effects models with consistency of agreement were used to derive ICC's (Shrout and Fleiss 1979).…”

Section: Statistical Analysesmentioning

confidence: 99%

Psychometric Evaluation of the Life Orientation Test—Revised in Treated Opiate Dependent Individuals

Hirsch

Britton

Conner

2009

Int J Ment Health Addiction

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We examined internal consistency and test-retest reliability of a measure of dispositional optimism, the Life Orientation Test -Revised, in 121 opiate-dependent patients seeking methadone treatment. Internal consistency was adequate at baseline (α=.69) and follow-up (α=.72). Low socioeconomic status and being on disability were significantly associated with reduced internal consistency; ethnic and educational differences approached significance. Test-retest reliability was good (ICC=.72), varying across gender, race, ethnicity, education, employment and income (ICC Range=.24 -.85). Criterion validity was strong; the LOT-R was significantly negatively correlated with hopelessness (r=-.65, p<.001) and depression (r=-.60, p<.001). Findings support the use of this measure of optimism and pessimism to assess positive cognitive and emotional attributes and improve treatment strategies for opiate-dependent individuals. Future research should address the measurement and significance of optimism in minority, low socioeconomic status and poorly-educated individuals.Investigation of psychological characteristics in patients with opiate use disorders has historically focused on negative attributes (e.g., depression, hopelessness) (Darke and Ross Int

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Multiple comparison methods: Establishing guidelines for their valid application in neuropsychological research

Cited by 109 publications

References 62 publications

Brief Report: Abnormal Association Between the Thalamus and Brain Size in Asperger’s Disorder

Brief Report: Abnormal Association Between the Thalamus and Brain Size in Asperger’s Disorder

Identifying hopelessness in population research: a validation study of two brief measures of hopelessness

Psychometric Evaluation of the Life Orientation Test—Revised in Treated Opiate Dependent Individuals

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