Stimulus picture identification in articulation testing

Area of Science:

• Speech-Language Pathology
• Linguistic Sciences
• Child Development

Background:

• Articulation testing is crucial for diagnosing speech sound disorders.
• The Goldman-Fristoe Test of Articulation (GFTA) was designed for efficiency, but previous studies noted longer administration times compared to traditional tests.
• Clarifying stimulus picture identification accuracy is essential for test validity.

Purpose of the Study:

• To compare the accuracy of initial stimulus picture identification between the Goldman-Fristoe Test of Articulation (GFTA) and the Arizona Articulation Proficiency Scale (AAPS).
• To investigate potential discrepancies in test administration efficiency and diagnostic yield based on picture identification.

Main Methods:

• Twenty children with normal speech and 20 with articulation defects participated.
• Subjects were administered relevant sections of both the GFTA and AAPS focusing on consonant and blend elicitation.
• Initial identification of stimulus pictures by each child was systematically recorded.

Main Results:

• The Arizona Articulation Proficiency Scale (AAPS) resulted in significantly more correct initial stimulus picture identifications (p < 0.001) compared to the Goldman-Fristoe Test of Articulation (GFTA).
• This suggests potential differences in the clarity or familiarity of visual stimuli between the two articulation tests.

Conclusions:

• The AAPS demonstrates superior performance in eliciting correct initial stimulus picture identification compared to the GFTA.
• Findings suggest that the visual stimuli in the GFTA may present challenges for accurate initial identification, potentially impacting diagnostic outcomes.
• Further research should explore the clinical implications of these identification differences on overall articulation assessment accuracy.