However, notallevidencesupportstheexistenceofacorrelationbetweenearlyattachmentsandlaterdevelopment.Regensburg'slongitudinalstudyfollowedindividualsfromoneyearofage.Atage16,attachmentwasassessedusingtheadultattachmentinterviewsandtherewasnoevidenceofcontinuity.
A limitation of themajorityoftheresearchintotheinternalworkingmodelistheself-reporttechniquesused.Internalworkingmodelsareunconsciousandsowearenotdirectlyawareoftheirinfluenceonuswhichmeansinterviewsorquestionnairesgiveusindirectevidenceaboutthemodelsinceparticipantscanonlyself-reportontheirrelationshipsusingtheirconsciousunderstandingofthoserelationships.Therefore, wecannotdefinitivelyconcludethatearlyattachmentaffectslaterrelationships.
Furthermore, adultrecollectionsofearly life mayleadtoinaccuraterecollections.