2020
Association of Multidimensional Schizotypy With Psychotic-Like Experiences, Affect, and Social Functioning in Daily Life: Comparable Findings Across Samples and Schizotypy Measures
Kwapil T, Kemp K, Mielock A, Sperry S, Chun C, Gross G, Barrantes-Vidal N. Association of Multidimensional Schizotypy With Psychotic-Like Experiences, Affect, and Social Functioning in Daily Life: Comparable Findings Across Samples and Schizotypy Measures. Journal Of Psychopathology And Clinical Science 2020, 129: 492-504. PMID: 32250141, DOI: 10.1037/abn0000522.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentFemaleHumansMalePsychometricsPsychotic DisordersSchizotypal Personality DisorderSocial AdjustmentSurveys and QuestionnairesYoung AdultConceptsPsychotic-like experiencesPositive schizotypyPositive affectNegative affectSchizotypy measuresSocial functioningSchizophrenia-spectrum psychopathologyDaily lifeAssessment of schizotypyNegative schizotypyMultidimensional schizotypySocial disinterestDaily life experiencesSchizotypyAffectMultidimensional modelNegative experiencesHypothesized patternConstruct validityESM questionnairesLife experiencesReal-world settingFunctioningUseful frameworkDifferent measuresDifferential Item Functioning of the Multidimensional Schizotypy Scale and Multidimensional Scale-Brief Across Ethnicity
Li L, Meyer M, Martin E, Gross G, Kwapil T, Cicero D. Differential Item Functioning of the Multidimensional Schizotypy Scale and Multidimensional Scale-Brief Across Ethnicity. Psychological Assessment 2020, 32: 383-393. PMID: 31944793, DOI: 10.1037/pas0000798.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultDiagnostic and Statistical Manual of Mental DisordersFemaleHumansMalePersonality InventoryPsychiatric Status Rating ScalesPsychometricsSchizotypal Personality DisorderYoung AdultConceptsMultidimensional Schizotypy ScaleSoutheast AsiansDiminished formEast AsiansSchizotypy scalesDifferential itemBrief versionEthnic groupsMSS measuresUnited StatesMultiracialBRIEF subscalesFuture researchUndergraduate participantsWhite participantsVariety of populationsAsiansSchizotypyLatent levelPersonality InventoryDiverse groupPsychometric propertiesValidity coefficientsPsychoticism scaleSame construct
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
Exploratory Graph Analysis of the Multidimensional Schizotypy Scale
Christensen A, Gross G, Golino H, Silvia P, Kwapil T. Exploratory Graph Analysis of the Multidimensional Schizotypy Scale. Schizophrenia Research 2018, 206: 43-51. PMID: 30573405, DOI: 10.1016/j.schres.2018.12.018.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnhedoniaFactor Analysis, StatisticalFemaleHumansMalePsychiatric Status Rating ScalesPsychometricsPsychotic DisordersSchizophreniaSchizophrenic PsychologySchizotypal Personality DisorderYoung AdultConceptsMultidimensional Schizotypy ScaleConfirmatory factor analysisSchizotypy scalesExploratory graph analysisNegative schizotypy dimensionsFour-factor modelThree-factor modelPositive schizotypyNegative schizotypySchizotypy dimensionsSchizotypy factorsQuestionnaire measuresDisorganized dimensionBrief versionSchizotypyDifferential associationsFactor analysisFuture researchIndependent samplesModel fitTheoretical dimensionsDimensional structurePrediction 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 structureAssociation of positive, negative, and disorganized schizotypy dimensions with affective symptoms and experiences
Kemp K, Gross G, Barrantes-Vidal N, Kwapil T. Association of positive, negative, and disorganized schizotypy dimensions with affective symptoms and experiences. Psychiatry Research 2018, 270: 1143-1149. PMID: 30366639, DOI: 10.1016/j.psychres.2018.10.031.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAffectAffective SymptomsAnxietyComorbidityDepressionFemaleHumansMalePsychiatric Status Rating ScalesPsychopathologySchizotypal Personality DisorderStudentsYoung AdultConceptsMultidimensional Schizotypy ScaleHypomanic traitsPositive schizotypyElevated negative affectAffective symptomsSchizophrenia-spectrum psychopathologyMeasures of depressionCognitive behavioral deficitsThree-factor modelNegative schizotypyState affectPositive affectSchizotypy dimensionsNegative affectComorbid expressionSchizotypy scalesSocial phobiaSchizotypyAnxiety disordersMTurk workersAffectSchizophrenia spectrumCollege studentsUseful constructConstruct validityValidity 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 ResearchMeSH KeywordsAdolescentAdultFemaleHumansMaleMiddle AgedPersonalityPersonality AssessmentPsychiatric Status Rating ScalesPsychometricsReproducibility of ResultsSchizotypal Personality DisorderYoung AdultConceptsMultidimensional 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
2016
Individual Differences in the Executive Control of Attention, Memory, and Thought, and Their Associations With Schizotypy
Kane M, Meier M, Smeekens B, Gross G, Chun C, Silvia P, Kwapil T. Individual Differences in the Executive Control of Attention, Memory, and Thought, and Their Associations With Schizotypy. Journal Of Experimental Psychology General 2016, 145: 1017-1048. PMID: 27454042, PMCID: PMC4965188, DOI: 10.1037/xge0000184.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAttentionExecutive FunctionFemaleHumansIndividualityInhibition, PsychologicalMaleMemory, Short-TermNeuropsychological TestsReaction TimeSchizotypal Personality DisorderThinkingYoung AdultConceptsExecutive deficitsMind wanderingAttention constraintsIndividual-differences structureMind-wandering propensityLarge correlational studyLatent variable approachExecutive attentionParanoid schizotypyExecutive controlAttentional constraintsNegative schizotypyAttention controlSeparable constructsMemory capacityExecutive failureMultidimensional constructWMCSchizotypyCorrelational studySchizophrenia symptomsSchizophreniaConstructsTaskDeficits
2015
The dimensional structure of short forms of the Wisconsin Schizotypy Scales
Gross G, Silvia P, Barrantes-Vidal N, Kwapil T. The dimensional structure of short forms of the Wisconsin Schizotypy Scales. Schizophrenia Research 2015, 166: 80-85. PMID: 26036815, DOI: 10.1016/j.schres.2015.05.016.Peer-Reviewed Original ResearchMeSH KeywordsFactor Analysis, StatisticalFemaleHumansInterview, PsychologicalLinear ModelsLogistic ModelsMalePsychiatric Status Rating ScalesSchizotypal Personality DisorderSurveys and QuestionnairesYoung AdultConceptsWisconsin Schizotypy ScalesConfirmatory factor analysisSchizotypy scalesTwo-factor structureTwo-factor modelPreliminary construct validityShort formNegative schizotypyQuestionnaire measuresNegative dimensionsFactor structureSchizotypyConstruct validityMultidimensional natureFactor analysisLarge sampleOriginal scaleSchizotypy modelDimensional structureGood reliabilityValidityFirst studyPsychopathologyScale dimensionsPersonality
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 ResearchMeSH KeywordsAdolescentFactor Analysis, StatisticalFemaleHumansMalePersonality AssessmentPersonality InventoryPsychometricsReproducibility of ResultsSchizotypal Personality DisorderSurveys and QuestionnairesYoung AdultConceptsSchizotypal 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
Prediction of Psychopathology and Functional Impairment by Positive and Negative Schizotypy in the Chapmans’ Ten-Year Longitudinal Study
Kwapil T, Gross G, Silvia P, Barrantes-Vidal N. Prediction of Psychopathology and Functional Impairment by Positive and Negative Schizotypy in the Chapmans’ Ten-Year Longitudinal Study. Journal Of Psychopathology And Clinical Science 2013, 122: 807-815. PMID: 24016018, DOI: 10.1037/a0033759.Peer-Reviewed Original ResearchConceptsNegative schizotypyPredictive validityPrediction of psychopathologyLongitudinal dataTen-year longitudinal studyNegative symptom dimensionsSchizophrenia spectrum disordersMental health treatmentPoor adjustmentSocial impairmentValidity findingsSchizoid symptomsRecent cross-sectional studySchizotypyCross-sectional studySymptom dimensionsControl participantsDevelopment of schizophreniaPositive dimensionUseful constructHealth treatmentParanoid symptomsMultidimensional structureLongitudinal studyDifferential patternsPositive 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