Dissertations, Theses, and Capstone Projects

Date of Degree

6-2023

Document Type

Dissertation

Degree Name

Ph.D.

Program

Psychology

Advisor

Joshua Jessel

Committee Members

Daniel M. Fienup

Bertram O. Ploog

Art Dowdy

Subject Categories

Other Social and Behavioral Sciences

Keywords

crying, head elevation, preference assessment, tummy time

Abstract

Tummy time is an activity for infants to practice their early motor skills. Although most pediatricians recommend tummy time, parents may avoid the procedures due to infant discomfort during this period. The present study investigated whether a preferred item functioned as a reinforcer to increase head elevation and decrease crying during tummy time with 16 consecutive, typically developing infants. The study compared the preferred items selected from a preference assessment to that of caregiver attention. In addition, we directly evaluated parental choice by allowing the mothers to select which tummy time treatment they would like to implement. We found that both preferred items and caregiver attention were effective in increasing head elevation and decreasing negative vocalizations during tummy time; however, the caregivers tended to prefer the treatment including the preferred item.

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