AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model

AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model

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DescriptionThe AI Instrumentality and Brand Credibility in Voice Assistant Retention—Model (Ghazali, Mutum, & Lun, 2024) was developed to explore user continuance behavior with AI voice assistants (AIVAs). This model expands the Expectation-Confirmation Model by integrating user technology-related traits, AI instrumentality attributes, and brand credibility. The questionnaire was adapted from established scales for the AIVA context and evaluated through structural equation modeling with a sample of past AIVA users. Reliability and validity assessments were conducted.
AuthorGhazali, Ezlika; Mutum, Dilip S.; Lun, Na Kai
ORCIDGhazali, Ezlika: 0000-0001-7824-4433 Mutum, Dilip S.: 0000-0002-9857-1164
AffiliationUniversity of Malaya, Faculty of Business and Economics; Monash University Malaysia, School of Business
Email[email protected]
Correspondence AddressDilip S. Mutum, Monash University Malaysia, School of Business, Subang Jaya, Malaysia, 47500
Test TypeOriginal
Instrument TypeInventory/Questionnaire
ConstructArtificial Intelligence Instrumentality; Brand Credibility; Voice Assistant Retention
PurposeEvaluates whether brand expertise and trustworthiness contribute to post-use satisfaction and continued use intention of AIVAs.
Test Year2024
FormatResponses are collected using a 7-point scale ranging from “1 = Strongly Disagree” to “7 = Strongly Agree,” assessing user experiences with AIVA brands.
Number of Items63
Factors and SubscalesConstructs include: Innovativeness, Optimism, Insecurity, Discomfort, Confirmation, Satisfaction, Continuance Intention, Intelligence, Anthropomorphism, Info Accuracy, Info Completeness (Reliability), Info Up-to-datedness (Recency), System Flexibility, System Reliability, System Timeliness, Brand Trustworthiness, and Brand Expertise.
ReliabilityComposite Reliability (CR) and Cronbach’s Alpha exceeded 0.7, indicating internal consistency reliability.
ValidityConvergent validity confirmed (AVE > 0.5 for all constructs). Discriminant validity established with most HTMT values below 0.75.
Factor AnalysisStructural Equation Modeling: Outer loadings exceeded 0.7, except for six removed items (INS1, INS4, DIS1, SYT1, INA2, BT2). Common method bias was assessed with a marker variable, showing minimal impact (R² difference: 0.489 to 0.493).
Test MethodologyConvergent Validity, Discriminant Validity, Internal Consistency, Measurement Model, Structural Equation Modeling.
Age GroupAdulthood (18+ years); Young Adulthood (18-29 years); Thirties (30-39 years)
Population GroupHuman; Male; Female
Population DetailsLocation: Malaysia; Respondents: Consumers
KeywordsAnthropomorphism, Brand Expertise, Brand Trustworthiness, Confirmation, Continuance Intention, Discomfort, Info Accuracy, Info Completeness (Reliability), Info Up-to-Datedness (Recency), Innovativeness, Insecurity, Intelligence, Optimism, Satisfaction, System Flexibility, System Reliability, System Timeliness, Measurement Model
Index TermsBrand Preferences, Consumer Attitudes, Consumer Behavior, Consumer Satisfaction, Anthropomorphism, Behavioral Intention, Consumer Measures, Technology Acceptance, Intelligent Personal Agents
FilesNo file available for download.
ReferenceGhazali, E., Mutum, D. S., & Lun, N. K. (2024). Expectations and beyond: The nexus of AI instrumentality and brand credibility in voice assistant retention using extended expectation-confirmation model. Middle Western Psychological Research Journal, 23(2), 655–675. https://doi.org/10.1002/cb.2228.

Cite this article

Mohammed looti (2026). AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model. PSYCHOLOGICAL SCALES. Retrieved from https://scales.arabpsychology.com/s/ai-instrumentality-and-brand-credibility-in-voice-assistant-retention-model/

Mohammed looti. "AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model." PSYCHOLOGICAL SCALES, 4 Apr. 2026, https://scales.arabpsychology.com/s/ai-instrumentality-and-brand-credibility-in-voice-assistant-retention-model/.

Mohammed looti. "AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model." PSYCHOLOGICAL SCALES, 2026. https://scales.arabpsychology.com/s/ai-instrumentality-and-brand-credibility-in-voice-assistant-retention-model/.

Mohammed looti (2026) 'AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model', PSYCHOLOGICAL SCALES. Available at: https://scales.arabpsychology.com/s/ai-instrumentality-and-brand-credibility-in-voice-assistant-retention-model/.

[1] Mohammed looti, "AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model," PSYCHOLOGICAL SCALES, vol. X, no. Y, ص Z-Z, April, 2026.

Mohammed looti. AI Instrumentality and Brand Credibility in Voice Assistant Retention–Model. PSYCHOLOGICAL SCALES. 2026;vol(issue):pages.

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