2019
Psychometric Properties of the Multidimensional Schizotypy Scale and Multidimensional Schizotypy Scale–Brief: Item and Scale Test–Retest Reliability and Concordance of Original and Brief Forms
Kemp K, Gross G, Kwapil T. Psychometric Properties of the Multidimensional Schizotypy Scale and Multidimensional Schizotypy Scale–Brief: Item and Scale Test–Retest Reliability and Concordance of Original and Brief Forms. Journal Of Personality Assessment 2019, 102: 508-515. PMID: 31012748, DOI: 10.1080/00223891.2019.1591425.Peer-Reviewed Original ResearchAdultFemaleHumansMalePsychiatric Status Rating ScalesPsychometricsReproducibility of ResultsSchizotypal Personality Disorder
2018
Prediction of prodromal symptoms and schizophrenia-spectrum personality disorder traits by positive and negative schizotypy: A 3-year prospective study
Racioppi A, Sheinbaum T, Gross G, Ballespí S, Kwapil T, Barrantes-Vidal N. Prediction of prodromal symptoms and schizophrenia-spectrum personality disorder traits by positive and negative schizotypy: A 3-year prospective study. PLOS ONE 2018, 13: e0207150. PMID: 30408119, PMCID: PMC6224105, DOI: 10.1371/journal.pone.0207150.Peer-Reviewed Original ResearchConceptsNegative schizotypyPersonality traitsYoung adult samplePrevious cross-sectional findingsSchizophrenia-spectrum psychopathologyAvoidant personality traitsPsychotic-like symptomsPsychometric high-risk strategyMental health treatmentCross-sectional findingsPositive schizotypyPersonality disorder traitsSchizotypy dimensionsResilience factorsSchizotypyLongitudinal findingsAdult samplesNegative dimensionsDisorder traitsEmotional disturbancePredictive validityGeneral psychopathologyMultidimensional modelHealth treatmentMultidimensional structureValidity of the Multidimensional Schizotypy Scale: Associations With Schizotypal Traits and Normal Personality
Kwapil T, Gross G, Burgin C, Raulin M, Silvia P, Barrantes-Vidal N. Validity of the Multidimensional Schizotypy Scale: Associations With Schizotypal Traits and Normal Personality. Personality Disorders Theory Research And Treatment 2018, 9: 458-466. PMID: 29722996, DOI: 10.1037/per0000288.Peer-Reviewed Original ResearchConceptsMultidimensional Schizotypy ScaleSchizotypal traitsSchizotypy subscalesPersonality traitsCognitive-perceptual schizotypal traitsPsychometric propertiesDisorganized schizotypal traitsConstruct validitySchizotypal personality traitsNegative associationFive-factor modelExcellent internal consistency reliabilityLarge multisite sampleSchizotypy scalesInternal consistency reliabilityPositive associationMultisite sampleSubscalesDerivation sampleConsistency reliabilityNeuroticismStrong associationSchizotypyTraitsOpenness
2017
The multidimensional schizotypy scale-brief: Scale development and psychometric properties
Gross G, Kwapil T, Raulin M, Silvia P, Barrantes-Vidal N. The multidimensional schizotypy scale-brief: Scale development and psychometric properties. Psychiatry Research 2017, 261: 7-13. PMID: 29272752, DOI: 10.1016/j.psychres.2017.12.033.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultFemaleHumansMaleMiddle AgedPsychometricsRandom AllocationReproducibility of ResultsSchizotypal Personality DisorderSurveys and QuestionnairesYoung AdultConceptsMultidimensional Schizotypy ScalePattern of findingsCross-validation sampleSchizotypy scalesPsychometric propertiesSeparate cross-validation samplePromising brief measurePattern of intercorrelationsHigh internal consistency reliabilityAmazon Mechanical TurkTest information functionItem response theoryClassical test theoryBrief measureInternal consistency reliabilityBrief versionMechanical TurkDifferential itemSubscalesTest theorySchizotypyOriginal subscalesScale developmentBest itemsResponse theoryDevelopment and psychometric properties of the Multidimensional Schizotypy Scale: A new measure for assessing positive, negative, and disorganized schizotypy
Kwapil T, Gross G, Silvia P, Raulin M, Barrantes-Vidal N. Development and psychometric properties of the Multidimensional Schizotypy Scale: A new measure for assessing positive, negative, and disorganized schizotypy. Schizophrenia Research 2017, 193: 209-217. PMID: 28735642, DOI: 10.1016/j.schres.2017.07.001.Peer-Reviewed Original Research
2014
Comparing the Factor Structure of the Wisconsin Schizotypy Scales and the Schizotypal Personality Questionnaire
Gross G, Mellin J, Silvia P, Barrantes-Vidal N, Kwapil T. Comparing the Factor Structure of the Wisconsin Schizotypy Scales and the Schizotypal Personality Questionnaire. Personality Disorders Theory Research And Treatment 2014, 5: 397-405. PMID: 25314229, DOI: 10.1037/per0000090.Peer-Reviewed Original ResearchConceptsSchizotypal Personality QuestionnaireWisconsin Schizotypy ScalesFactor structureSchizotypy scalesInterpersonal factorsPersonality QuestionnaireCognitive-perceptual factorsFactor analysisFive-factor modelConfirmatory factor analysisPositive schizotypySchizotypy dimensionsPatterns of associationPsychometric measuresExploratory factor analysisSchizotypyMultidimensional constructDisorganization factorSubclinical levelsMultidimensional structureDifferent constructsPrevious findingsComparable constructsSchizophrenic symptomsComparable factors
2013
Positive and negative schizotypy are associated with prodromal and schizophrenia-spectrum symptoms
Barrantes-Vidal N, Gross G, Sheinbaum T, Mitjavila M, Ballespí S, Kwapil T. Positive and negative schizotypy are associated with prodromal and schizophrenia-spectrum symptoms. Schizophrenia Research 2013, 145: 50-55. PMID: 23402694, DOI: 10.1016/j.schres.2013.01.007.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultFemaleHumansMalePsychometricsReproducibility of ResultsSchizophreniaSchizophrenic PsychologySchizotypal Personality DisorderSurveys and QuestionnairesYoung AdultConceptsSchizophrenia-spectrum personality disordersDevelopment of schizophreniaPositive schizotypy dimensionNegative symptom dimensionsPresent studySchizophrenia prodromeMood symptomsRelated disordersYoung adultsSchizoid symptomsSymptomsPersonality disorderSchizophrenia-spectrum symptomsSymptom dimensionsInterview measuresSpanish young adultsDisordersPrevious findingsThreshold statusQuestionnaire measuresCAARMSProdromeProdromalEtiologyFindings
2011
Psychometric properties and validity of short forms of the Wisconsin Schizotypy Scales in two large samples
Gross G, Silvia P, Barrantes-Vidal N, Kwapil T. Psychometric properties and validity of short forms of the Wisconsin Schizotypy Scales in two large samples. Schizophrenia Research 2011, 134: 267-272. PMID: 22189258, DOI: 10.1016/j.schres.2011.11.032.Peer-Reviewed Original Research