An observational measure of temperament (MN-PARS) was compared to a parent-report measure of temperament (IBQ-R) at the 6- and 12-month time points for 31 infants at heightened risk for ASD (HR-D = 8) and 15 age-matched LR infants. The Child Behavior Checklist/1½ to 5 was collected at 24 months. Autism diagnostic status was determined at 24 months by trained clinicians. As measured by the MN-PARS, LR infants displayed more negative affect at 6 months and less negative affect at 12 months than HR-D infants, who showed the opposite pattern. On IBQ Negative Affectivity, HRD infants displayed significantly more negative affect at 12 but not 6 months than LR infants. Although many significant correlations were found within each temperament measure, there were virtually no significant correlations between IBQ-R temperament dimensions and conceptually similar MN-PARS ratings at 6 or 12 months. Qualitative inspection of MN-PARS temperament profiles suggested that HR-D infants appeared more passive and dull at 6 months than LR infants, but that by 12 months they showed more irritability and less adaptability. The measure that best differentiated the HR-D and LR infants was the Pervasive Developmental Problems Scale on the CBCL/1½ to 5, which was administered at 24 months.
","abstract_html":"<p>An observational measure of temperament (MN-PARS) was compared to a parent-report measure of temperament (IBQ-R) at the 6- and 12-month time points for 31 infants at heightened risk for ASD (HR-D = 8) and 15 age-matched LR infants. The Child Behavior Checklist/1½ to 5 was collected at 24 months. Autism diagnostic status was determined at 24 months by trained clinicians. As measured by the MN-PARS, LR infants displayed more negative affect at 6 months and less negative affect at 12 months than HR-D infants, who showed the opposite pattern. On IBQ Negative Affectivity, HRD infants displayed significantly more negative affect at 12 but not 6 months than LR infants. Although many significant correlations were found within each temperament measure, there were virtually no significant correlations between IBQ-R temperament dimensions and conceptually similar MN-PARS ratings at 6 or 12 months. Qualitative inspection of MN-PARS temperament profiles suggested that HR-D infants appeared more passive and dull at 6 months than LR infants, but that by 12 months they showed more irritability and less adaptability. The measure that best differentiated the HR-D and LR infants was the Pervasive Developmental Problems Scale on the CBCL/1½ to 5, which was administered at 24 months.</p>","abstract_has_math":false,"creators":["Winder, Breanna M."],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Bryn Mawr only","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-01-01T08:00:00Z","date_published":"2013-01-01T08:00:00Z","updated_at":"2026-07-24T01:23:36Z","subjects":["Psychiatry and Psychology"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://repository.brynmawr.edu/dissertations/73","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Winder, Breanna M."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2013-07-24T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Bryn Mawr only"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Psychiatry and Psychology"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://repository.brynmawr.edu/dissertations/73"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["An observational measure of temperament (MN-PARS) was compared to a parent-report measure of temperament (IBQ-R) at the 6- and 12-month time points for 31 infants at heightened risk for ASD (HR-D = 8) and 15 age-matched LR infants. The Child Behavior Checklist/1½ to 5 was collected at 24 months. Autism diagnostic status was determined at 24 months by trained clinicians. As measured by the MN-PARS, LR infants displayed more negative affect at 6 months and less negative affect at 12 months than HR-D infants, who showed the opposite pattern. On IBQ Negative Affectivity, HRD infants displayed significantly more negative affect at 12 but not 6 months than LR infants. Although many significant correlations were found within each temperament measure, there were virtually no significant correlations between IBQ-R temperament dimensions and conceptually similar MN-PARS ratings at 6 or 12 months. Qualitative inspection of MN-PARS temperament profiles suggested that HR-D infants appeared more passive and dull at 6 months than LR infants, but that by 12 months they showed more irritability and less adaptability. The measure that best differentiated the HR-D and LR infants was the Pervasive Developmental Problems Scale on the CBCL/1½ to 5, which was administered at 24 months.
"]},{"key":"dc:title","label":"Title","values":["Temperament in Infants at Heightened Risk for Autism Spectrum Disorder"]}]}],"canonical_facts":{"dc:creator":["Winder, Breanna M."],"dc:date.available":["2013-07-24T07:00:00Z"],"dc:description.abstract":["An observational measure of temperament (MN-PARS) was compared to a parent-report measure of temperament (IBQ-R) at the 6- and 12-month time points for 31 infants at heightened risk for ASD (HR-D = 8) and 15 age-matched LR infants. The Child Behavior Checklist/1½ to 5 was collected at 24 months. Autism diagnostic status was determined at 24 months by trained clinicians. As measured by the MN-PARS, LR infants displayed more negative affect at 6 months and less negative affect at 12 months than HR-D infants, who showed the opposite pattern. On IBQ Negative Affectivity, HRD infants displayed significantly more negative affect at 12 but not 6 months than LR infants. Although many significant correlations were found within each temperament measure, there were virtually no significant correlations between IBQ-R temperament dimensions and conceptually similar MN-PARS ratings at 6 or 12 months. Qualitative inspection of MN-PARS temperament profiles suggested that HR-D infants appeared more passive and dull at 6 months than LR infants, but that by 12 months they showed more irritability and less adaptability. The measure that best differentiated the HR-D and LR infants was the Pervasive Developmental Problems Scale on the CBCL/1½ to 5, which was administered at 24 months.
"],"dc:identifier":["https://repository.brynmawr.edu/dissertations/73"],"dc:subject":["Psychiatry and Psychology"],"dc:title":["Temperament in Infants at Heightened Risk for Autism Spectrum Disorder"],"thesis:degree_discipline":["Psychology"],"thesis:degree_level":["Bryn Mawr only"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T01:23:36Z"}