Reliability and Validity of the Turkish Version of the Object Permanence Scale

The aim of the study is the cultural adaptation of the Object Permanence Scale to Turkish and to examine its validity and reliability. The sample of the study will be 7-16 months old babies with motor developmental delay. Inclusion criteria: 7-16 months of age, sitting for at least 3 seconds but not being able to switch independently between sitting and other positions, and showing at least one developmental delay in the motor development subscale of the Bayley III Developmental Assessment. Evaluations will be done at baseline and after 1 week (retest). Exclusion criteria: Medical complications (eg, severe visual impairment) limiting participation in assessments; autism, down syndrome, or spinal cord injury; diagnosed uncontrolled seizure disorder; or a neurodegenerative disorder.

Study Overview

• Status: Recruiting
• Conditions: Developmental Delay

• Study Type: Observational
• Enrollment (Estimated): 32

Contacts and Locations

Study Locations

• Turkey
  • Tokat, Turkey, 60250
    • Recruiting
    • Faculty of Health Sciences, Tokat Gaziosmanpaşa University
    • Contact: Erkan Erol, PhD; Phone Number: 05547920118; Email: erkanerol@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 7 months to 1 year (Child)
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Infants aged 7-16 months with motor developmental delay

Description

Inclusion Criteria:

• 7-16 months,
• Sitting for at least 3 seconds but unable to independently switch between sitting and other positions
• To show at least one retardation in motor subscale of Bayley III.

Exclusion Criteria:

• Medical complications (eg, severe visual impairment) limiting participation in assessments; autism, down syndrome, or spinal cord injury; diagnosed uncontrolled seizure disorder; or a neurodegenerative disorder

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Object Permanence Scale	The minimum score of the Object Permanence Scale is 0, and the maximum score is 10. Higher scores indicate better outcome.	Baseline
The Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) motor and cognitive subscales	Cognitive subscale consists of 91 items and Motor subscale consists of 138 items. Items are scored as 1 (done) and 0 (not able to). Higher scores indicate better outcome.	Baseline
Object Permanence Scale	The minimum score of the Object Permanence Scale is 0, and the maximum score is 10. Higher scores indicate better outcome.	After 1 week (retest)
Gross motor function measure sitting subscale	The sitting subscale consists of 20 items. Each item is scored on a 4-point ordinal scale (0-3). Higher scores indicate better outcome.	Baseline

Collaborators and Investigators

• Sponsor: Tokat Gaziosmanpasa University

Study record dates

Study Major Dates

• Study Start (Actual): February 1, 2023
• Primary Completion (Estimated): March 1, 2024
• Study Completion (Estimated): June 1, 2024

Study Registration Dates

• First Submitted: February 19, 2023
• First Submitted That Met QC Criteria: February 19, 2023
• First Posted (Actual): March 1, 2023

Study Record Updates

• Last Update Posted (Actual): September 13, 2023
• Last Update Submitted That Met QC Criteria: September 11, 2023
• Last Verified: September 1, 2023

More Information

Terms related to this study

• Other Study ID Numbers: GaziosmanpasaU_Erol_02

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No