{"id":{"repo_id":"u-pacific","oai_identifier":"oai:scholarlycommons.pacific.edu:uop_etds-1293"},"canonical_url":"https://search.dev.ndltd.org/etd/u-pacific/oai:scholarlycommons.pacific.edu:uop_etds-1293","repository":{"repo_id":"u-pacific","name":"University of the Pacific","base_url":"https://scholarlycommons.pacific.edu/do/oai/"},"display":{"title":"Investigating infant preference for prosocial others: Replication and extension using repeated measures","abstract":"Recent research suggests that infants as young as 5 months old demonstrate an innate or unlearned ability to make judgments about others' prosocial and antisocial behavior. Data used to support this assertion suggest that, when given a single opportunity to choose a puppet after watching a puppet show, more infants (72-100% of infants) choose a helper puppet (the puppet that \"helps\" another puppet attain its goal) over a hinderer puppet (the puppet that \"hinders\" another puppet from attaining its goal). However, to date, no independent research teams have published a replication of these methods and results. The purpose of the current investigation was to replicate Hamlin and Wynn (2011) and extend their work by including within-subject repeated measures of choice. Twenty infants were shown a puppet show nearly identical to that used by Hamlin and Wynn (2011) and asked to make a choice between the two puppets afterwards (i.e., the helper or hinderer); infants were then asked to choose a puppet four more times, resulting in five choices per infant. Results of the current investigation failed to replicate those of Hamlin and Wynn (2011), as infants in the current investigation did not consistently choose the helper more often during subsequent choice trials. Implications and limitations of this study, as well as suggestions for future research are discussed.","abstract_html":"Recent research suggests that infants as young as 5 months old demonstrate an innate or unlearned ability to make judgments about others' prosocial and antisocial behavior. Data used to support this assertion suggest that, when given a single opportunity to choose a puppet after watching a puppet show, more infants (72-100% of infants) choose a helper puppet (the puppet that "helps" another puppet attain its goal) over a hinderer puppet (the puppet that "hinders" another puppet from attaining its goal). However, to date, no independent research teams have published a replication of these methods and results. The purpose of the current investigation was to replicate Hamlin and Wynn (2011) and extend their work by including within-subject repeated measures of choice. Twenty infants were shown a puppet show nearly identical to that used by Hamlin and Wynn (2011) and asked to make a choice between the two puppets afterwards (i.e., the helper or hinderer); infants were then asked to choose a puppet four more times, resulting in five choices per infant. Results of the current investigation failed to replicate those of Hamlin and Wynn (2011), as infants in the current investigation did not consistently choose the helper more often during subsequent choice trials. Implications and limitations of this study, as well as suggestions for future research are discussed.","abstract_has_math":false,"creators":["Nighbor, Tyler D."],"institution":null,"degree_name":"Master of Arts (M.A.)","degree_level":"Thesis - Pacific Access Restricted","degree_discipline":"Psychology","degree_department":null,"school":null,"contributors":["Carolynn Kohn"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-01-01T08:00:00Z","date_published":"2014-01-01T08:00:00Z","updated_at":"2026-07-24T05:36:09Z","subjects":["Social psychology","Developmental psychology","Experimental psychology","Psychology","Infants","Innate morality","Parsimony","Replication","Medicine and Health Sciences","Psychiatry and Psychology","Social and Behavioral Sciences"],"languages":[],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["9781321285086"],"render_values":[{"text":"9781321285086","href":null,"code":true}]}]},"links":{"outbound_url":"https://scholarlycommons.pacific.edu/uop_etds/294","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Carolynn Kohn"]},{"key":"dc:creator","label":"Author","values":["Nighbor, Tyler D."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2018-06-29T09:06:44Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Psychology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis - Pacific Access Restricted"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Arts (M.A.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Social psychology","Developmental psychology","Experimental psychology","Psychology","Infants","Innate morality","Parsimony","Replication","Medicine and Health Sciences","Psychiatry and Psychology","Social and Behavioral Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["9781321285086","https://scholarlycommons.pacific.edu/uop_etds/294"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Recent research suggests that infants as young as 5 months old demonstrate an innate or unlearned ability to make judgments about others' prosocial and antisocial behavior. Data used to support this assertion suggest that, when given a single opportunity to choose a puppet after watching a puppet show, more infants (72-100% of infants) choose a helper puppet (the puppet that \"helps\" another puppet attain its goal) over a hinderer puppet (the puppet that \"hinders\" another puppet from attaining its goal). However, to date, no independent research teams have published a replication of these methods and results. The purpose of the current investigation was to replicate Hamlin and Wynn (2011) and extend their work by including within-subject repeated measures of choice. Twenty infants were shown a puppet show nearly identical to that used by Hamlin and Wynn (2011) and asked to make a choice between the two puppets afterwards (i.e., the helper or hinderer); infants were then asked to choose a puppet four more times, resulting in five choices per infant. Results of the current investigation failed to replicate those of Hamlin and Wynn (2011), as infants in the current investigation did not consistently choose the helper more often during subsequent choice trials. Implications and limitations of this study, as well as suggestions for future research are discussed."]},{"key":"dc:source","label":"Dc Source","values":["85"]},{"key":"dc:title","label":"Title","values":["Investigating infant preference for prosocial others: Replication and extension using repeated measures"]}]}],"canonical_facts":{"dc:contributor":["Carolynn Kohn"],"dc:creator":["Nighbor, Tyler D."],"dc:date.available":["2018-06-29T09:06:44Z"],"dc:description.abstract":["Recent research suggests that infants as young as 5 months old demonstrate an innate or unlearned ability to make judgments about others' prosocial and antisocial behavior. Data used to support this assertion suggest that, when given a single opportunity to choose a puppet after watching a puppet show, more infants (72-100% of infants) choose a helper puppet (the puppet that \"helps\" another puppet attain its goal) over a hinderer puppet (the puppet that \"hinders\" another puppet from attaining its goal). However, to date, no independent research teams have published a replication of these methods and results. The purpose of the current investigation was to replicate Hamlin and Wynn (2011) and extend their work by including within-subject repeated measures of choice. Twenty infants were shown a puppet show nearly identical to that used by Hamlin and Wynn (2011) and asked to make a choice between the two puppets afterwards (i.e., the helper or hinderer); infants were then asked to choose a puppet four more times, resulting in five choices per infant. Results of the current investigation failed to replicate those of Hamlin and Wynn (2011), as infants in the current investigation did not consistently choose the helper more often during subsequent choice trials. Implications and limitations of this study, as well as suggestions for future research are discussed."],"dc:identifier":["9781321285086","https://scholarlycommons.pacific.edu/uop_etds/294"],"dc:rights":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:source":["85"],"dc:subject":["Social psychology","Developmental psychology","Experimental psychology","Psychology","Infants","Innate morality","Parsimony","Replication","Medicine and Health Sciences","Psychiatry and Psychology","Social and Behavioral Sciences"],"dc:title":["Investigating infant preference for prosocial others: Replication and extension using repeated measures"],"thesis:degree_discipline":["Psychology"],"thesis:degree_level":["Thesis - Pacific Access Restricted"],"thesis:degree_name":["Master of Arts (M.A.)"]},"updated_at":"2026-07-24T05:36:09Z"}