The investigators will evaluate a computer-animated character that explains medical illustrations to people, comparing the character to having people understand the illustrations on their own, and also comparing the computer character on a computer display to one in immersive virtual reality. The investigators will determine which method leads to the best understanding and lowest anxiety.
The investigators are developing a new approach to explaining patient education documents and illustrations to patients with varying levels of health literacy, involving the use of Embodied Conversational Agents (ECAs). The investigators will evaluate our ECA-augmented Document Explanation tool to determine whether it improves patient learning relative to traditional static patient education documents. The investigators will conduct a 3-arm randomized between-subjects experiment, in which participants read a patient education document with embedded medical illustration, either unaided (CONTROL), with the assistance of an ECA rendered in 2D on a standard computer monitor (ECA-2D), or with the assistance of an ECA in immersive Virtual Reality (ECA-3D).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Enrollment
300
A computer-animated character that can explain a medical illustration to laypersons.
Tufts Medical Center
Boston, Massachusetts, United States
NOT_YET_RECRUITINGNortheastern University
Boston, Massachusetts, United States
RECRUITINGKnowledge
A multiple-item knowledge test designed to test comprehension of the patient education document
Time frame: Baseline and 30 minutes
State Anxiety scale from State-Trait Anxiety Inventory
Self-report state anxiety scale from the State-Trait Anxiety Inventory. 20 items, 4-point Likert scale. A higher score indicates more severe anxiety with a potential range from 20 to 80.
Time frame: 30 minutes
Satisfaction with illustration
Likert items to assess satisfaction with the document and illustration
Time frame: 30 minutes
Reading Effort
Likert items to assess perceived effort in reading a document and illustration
Time frame: 30 minutes
Acceptability
Likert items to assess acceptability and appropriateness of the illustration
Time frame: 30 minutes
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