User Experience With Virtual Assistants in Service SettingsAVir4ServicesNCT07666295
Effects of Virtual Assistant Features on User Experience in Service Settings
A study testing High Anthropomorphism, Low Anthropomorphism and Accurate Virtual Assistant Response in people with User Experience With Virtual Assistants in Service Settings, run by University of Malaga at 1 site in Spain.
Trial summary
This study examines how the characteristics and performance of virtual assistants influence user experience in service settings. Approximately 400 adults will interact with virtual assistants presented as avatars, chatbots, or voice assistants in simulated tourism, cultural, retail, or financial service situations. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- User Experience With Virtual Assistants in Service Settings
- What is being tested?
- High Anthropomorphism, Low Anthropomorphism and Accurate Virtual Assistant Response
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 400 participants
- Where
- 1 siteSpain
- Study dates
- Sep 2026to Jan 2028
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Adults aged 18 years or older.
- Able to understand the study information and provide informed consent.
- Sufficient proficiency in Spanish to understand the instructions and complete the study questionnaires.
- Able to interact with a computer-based virtual assistant and complete the experimental session.
- Willing to complete the study procedures, which may include questionnaires, eye tracking, electrodermal activity recording, electroencephalography, and facial expression recording.
Who cannot join
- Younger than 18 years.
- Unable to understand the study information or provide valid informed consent.
- Insufficient proficiency in Spanish to understand the instructions or complete the questionnaires.
- A visual, hearing, motor, or other condition that prevents completion of the specific experimental task and cannot be accommodated by the study procedures.
- A temporary health condition, discomfort, or technical incompatibility that, according to the study procedures, prevents safe or reliable completion of the experimental session.
- Previous participation in the same experimental protocol, when prior exposure could influence the study outcomes.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Francisco Rejón-Guardia, Associate professor of marketing, PhD contact
Spain1 site
Consumer Behavior Research Laboratory (LICCO), University of Malaga
Málaga, 29013
Sebastián Molinillo Jiménez Professor of Marketing and Principal Investigator, PhD, +34 952 13 12 65, smolinillo@uma.es
Francisco Rejón-Guardia, PhD
About this study
Official title: Virtual Assistants as Agents of Change: Improving User Interaction and User Experience Outcomes in Service Delivery
This study examines how the characteristics and performance of virtual assistants influence user experience in service settings. Approximately 400 adults will interact with virtual assistants presented as avatars, chatbots, or voice assistants in simulated tourism, cultural, retail, or financial service situations.
Participants will be exposed to one or more experimental conditions that may differ in features such as communication style, language specificity, anthropomorphism, personalization, type of virtual assistant, level of immersion, or the presence of inaccurate responses or errors. After the interaction, participants will complete questionnaires about their perceptions, emotions, trust, satisfaction, acceptance of recommendations, and intention to use the virtual assistant.
Read more
During the experimental session, non-invasive methods may be used to measure visual attention and psychophysiological responses. These methods include eye tracking, electrodermal activity, electroencephalography, and automated facial expression analysis. Facial recordings will be used to analyze emotional expressions and will not be used to identify participants.
The study does not involve drugs, biological products, medical treatments, diagnostic procedures, or investigational medical devices. Its purpose is to improve scientific understanding of human interaction with artificial intelligence and virtual assistants in service environments.
Read the detailed description
Virtual assistants are artificial intelligence systems that enable users to interact with digital services via text, voice, or embodied avatars. Their use does not necessarily improve user experience because interaction outcomes may depend on the design and behavior of the virtual assistant, the service context, and the characteristics of the user.
The main objective of this study is to identify the factors that influence user interaction and user experience outcomes when people engage with virtual assistants in service settings. The study will examine characteristics such as the type of virtual assistant, communication style, language specificity, anthropomorphism, personalization, adaptability, appearance, voice, level of immersion, and the occurrence of inaccurate, erroneous, or unexpected responses.
Approximately 400 adults aged 18 years or older will participate in experimental sessions conducted primarily at the Consumer Behavior Research Laboratory (LICCO) of the University of Malaga. Participants will be recruited through the Online Recruitment System for Economic Experiments (ORSEE), university communication channels, social media, collaborating organizations, and other appropriate recruitment channels.
Participants will interact with or be exposed to virtual assistants developed or configured for the study. These may include avatars, chatbots, and voice assistants presented in two-dimensional or immersive three-dimensional environments. The experimental materials may also include edited images, audio, or video representing simulated interactions with virtual assistants in tourism, cultural, retail, financial, or other service contexts.
Depending on the specific experimental design, participants will be assigned to conditions that differ in one or more virtual assistant features or interaction outcomes. The study may compare different levels of anthropomorphism, communication styles, degrees of language specificity, personalization, assistant modality, immersion, or response accuracy. The final allocation procedures and experimental conditions will be defined before recruitment and documented in the study protocol and ClinicalTrials.gov record.
After the interaction, participants will complete questionnaires assessing variables such as perceived usefulness, enjoyment, symbolic benefits, trust, satisfaction, attitude toward the recommendation, acceptance of recommendations, perceived risk, privacy concerns, emotional response, and intention to use the virtual assistant. Relevant participant characteristics, including age, gender, personality, personal innovativeness, digital experience, and accessibility needs, may also be examined as explanatory or moderating variables.
Non-invasive consumer neuroscience and psychophysiological techniques may be used during the experimental session. Eye tracking will record gaze position, visual fixations, and eye movements. Electrodermal activity will be used to assess changes in physiological arousal. Electroencephalography will record electrical brain activity associated with cognitive and emotional processing. Automated facial expression analysis will code observable facial movements and emotional expressions. Facial recordings will not be used for biometric identification, authentication, or identity verification.
Participants will receive study information and provide informed consent before data collection. A safety screening questionnaire will be administered when required for the psychophysiological procedures. Data will be coded and stored separately from directly identifying information. Results will be reported only in aggregated, anonymized, or appropriately pseudonymized form.
The study is behavioral and non-therapeutic. It does not involve medication, biological samples, medical treatment, diagnosis, or evaluation of a medical device. The procedures are non-invasive, although participants may experience temporary tiredness or minor discomfort during the experimental session.
- Being tested
- High Anthropomorphism, Low Anthropomorphism, Accurate Virtual Assistant Response, Inaccurate Virtual Assistant Response
- Keywords
- Virtual Assistants, Artificial Intelligence, Human-Computer Interaction, User Experience, Consumer Behavior, Technology Acceptance, Anthropomorphism, Eye Tracking, Electrodermal Activity, Electroencephalography, Facial Expression Analysis
- Medical subject headings
- Consumer Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
High AnthropomorphismBehavioural
The virtual assistant will display a comparatively high level of human-like visual, vocal, or conversational characteristics, as operationalized in the experimental protocol.
Low AnthropomorphismBehavioural
The virtual assistant will display a comparatively low level of human-like visual, vocal, or conversational characteristics, as operationalized in the experimental protocol.
Accurate Virtual Assistant ResponseBehavioural
The virtual assistant will provide accurate, relevant, and contextually appropriate information during the simulated service interaction.
Inaccurate Virtual Assistant ResponseBehavioural
The virtual assistant will provide a predefined inaccurate or contextually inappropriate response during the simulated service interaction. The error will be standardized across participants assigned to this condition and will not concern medical, safety-related, or other high-risk information.
| Study group | Role | What they receive |
|---|---|---|
| High Anthropomorphism and Accurate Response | Experimental | Participants will interact with a virtual assistant displaying a high level of anthropomorphic features. The virtual assistant will provide accurate and relevant responses during the service interaction. Receives: Behavioral: High Anthropomorphism; Behavioral: Accurate Virtual Assistant Response |
| High Anthropomorphism and Inaccurate Response | Experimental | Participants will interact with a virtual assistant displaying a high level of anthropomorphic features. During the service interaction, the virtual assistant will provide a predefined inaccurate or irrelevant response designed for the experiment. Receives: Behavioral: High Anthropomorphism; Behavioral: Inaccurate Virtual Assistant Response |
| Low Anthropomorphism and Accurate Response | Experimental | Participants will interact with a virtual assistant displaying a low level of anthropomorphic features. The virtual assistant will provide accurate and relevant responses during the service interaction. Receives: Behavioral: Low Anthropomorphism; Behavioral: Accurate Virtual Assistant Response |
| Low Anthropomorphism and Inaccurate Response | Experimental | Participants will interact with a virtual assistant displaying a low level of anthropomorphic features. During the service interaction, the virtual assistant will provide a predefined inaccurate or irrelevant response designed for the experiment. Receives: Behavioral: Low Anthropomorphism; Behavioral: Inaccurate Virtual Assistant Response |
What is being measured
The primary outcome is the main question the study is designed to answer.
Trust in the Virtual Assistant
Trust in the virtual assistant will be assessed immediately after the interaction using a pre-specified multi-item questionnaire. Participants will rate each item on a 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). An overall trust score will be calculated as the mean of the completed items. Higher scores indicate greater trust in the virtual assistant.
Measured: Immediately after the virtual assistant interaction, during the same experimental session
Secondary outcomes (5)
User Satisfaction With the Virtual Assistant
User satisfaction will be assessed immediately after the interaction using a pre-specified multi-item questionnaire. Items will be rated on a 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). The satisfaction score will be calculated as the mean of the completed items. Higher scores indicate greater satisfaction.
Measured: Immediately after the virtual assistant interaction, during the same experimental session
Intention to Use the Virtual Assistant
Participants' intention to use a similar virtual assistant in the future will be assessed using a pre-specified multi-item questionnaire. Items will be rated on a 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). The overall score will be calculated as the mean of the completed items. Higher scores indicate greater intention to use the virtual assistant.
Measured: Immediately after the virtual assistant interaction, during the same experimental session
Acceptance of the Virtual Assistant Recommendation
Acceptance of the recommendation provided by the virtual assistant will be assessed after the interaction using a 7-point response scale. Higher scores indicate greater willingness to accept or follow the recommendation.
Measured: Immediately after the virtual assistant interaction, during the same experimental session
Electrodermal Activity During the Virtual Assistant Interaction
Electrodermal activity will be recorded continuously during the interaction. Skin conductance responses associated with the experimental stimuli will be derived from the recorded signal and compared across experimental conditions. Greater skin conductance responses indicate greater physiological arousal.
Measured: From the start to the end of the virtual assistant interaction, for up to 20 minutes.
Visual Attention During the Virtual Assistant Interaction
Visual attention will be measured using eye tracking. Pre-specified metrics will include fixation duration and number of fixations within defined areas of interest. The eye-tracking measures will be compared across experimental conditions.
Measured: Continuously during the virtual assistant interaction, over approximately 20 minutes.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Jun 2026
- Study startSep 2026 (estimated)
- Primary completionJan 2028 (estimated)
- Study completionJan 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for User Experience With Virtual Assistants in Service SettingsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants will be assigned to one experimental condition involving interaction with a virtual assistant. The conditions will differ in selected virtual assistant features or interaction outcomes. Each participant will complete the experimental task and the post-interaction outcome assessment under the assigned condition.
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 400 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Malaga
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Francisco Rejón-Guardia, University of Malaga
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07666295
- Sponsor's protocol ID
- AVIR4SERVICES-EXP-01
- Acronym
- AVir4Services
- Status last verified
- Jun 2026
- First submitted
- 11 Jun 2026
- Last updated
- 24 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data will not be made publicly available because the study includes potentially sensitive questionnaire, facial recording, eye-tracking, electrodermal activity, and electroencephalography data. Aggregated and fully anonymized results may be shared in scientific publications or institutional repositories, subject to ethical, legal, and data protection requirements.
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Virtual Assistants as Agents of Change: Improving User Interaction and User Experience Outcomes in Service Delivery
- ClinicalTrials.gov ID
- NCT07666295
- Acronym / sponsor ID
- AVir4Services / AVIR4SERVICES-EXP-01
- Keywords
- Virtual Assistants, Artificial Intelligence, Human-Computer Interaction, User Experience, Consumer Behavior, Technology Acceptance, Anthropomorphism, Eye Tracking
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 400 participants (estimated)
- Lead sponsor
- University of MalagaUniversity, hospital or other
- Study start
- Sep 2026 (estimated)
- Primary completion
- Jan 2028 (estimated)
- Study completion
- Jan 2028 (estimated)
- First posted
- 24 Jun 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study examines how the characteristics and performance of virtual assistants influence user experience in service settings. Approximately 400 adults will interact with virtual assistants presented as avatars, chatbots, or voice assistants in simulated tourism, cultural, retail, or financial service situations.
Participants will be exposed to one or more experimental conditions that may differ in features such as communication style, language specificity, anthropomorphism, personalization, type of virtual assistant, level of immersion, or the presence of inaccurate responses or errors. After the interaction, participants will complete questionnaires about their perceptions, emotions, trust, satisfaction, acceptance of recommendations, and intention to use the virtual assistant.
During the experimental session, non-invasive methods may be used to measure visual attention and psychophysiological responses. These methods include eye tracking, electrodermal activity, electroencephalography, and automated facial expression analysis. Facial recordings will be used to analyze emotional expressions and will not be used to identify participants.
The study does not involve drugs, biological products, medical treatments, diagnostic procedures, or investigational medical devices. Its purpose is to improve scientific understanding of human interaction with artificial intelligence and virtual assistants in service environments.
Detailed description
Virtual assistants are artificial intelligence systems that enable users to interact with digital services via text, voice, or embodied avatars. Their use does not necessarily improve user experience because interaction outcomes may depend on the design and behavior of the virtual assistant, the service context, and the characteristics of the user.
The main objective of this study is to identify the factors that influence user interaction and user experience outcomes when people engage with virtual assistants in service settings. The study will examine characteristics such as the type of virtual assistant, communication style, language specificity, anthropomorphism, personalization, adaptability, appearance, voice, level of immersion, and the occurrence of inaccurate, erroneous, or unexpected responses.
Approximately 400 adults aged 18 years or older will participate in experimental sessions conducted primarily at the Consumer Behavior Research Laboratory (LICCO) of the University of Malaga. Participants will be recruited through the Online Recruitment System for Economic Experiments (ORSEE), university communication channels, social media, collaborating organizations, and other appropriate recruitment channels.
Participants will interact with or be exposed to virtual assistants developed or configured for the study. These may include avatars, chatbots, and voice assistants presented in two-dimensional or immersive three-dimensional environments. The experimental materials may also include edited images, audio, or video representing simulated interactions with virtual assistants in tourism, cultural, retail, financial, or other service contexts.
Depending on the specific experimental design, participants will be assigned to conditions that differ in one or more virtual assistant features or interaction outcomes. The study may compare different levels of anthropomorphism, communication styles, degrees of language specificity, personalization, assistant modality, immersion, or response accuracy. The final allocation procedures and experimental conditions will be defined before recruitment and documented in the study protocol and ClinicalTrials.gov record.
After the interaction, participants will complete questionnaires assessing variables such as perceived usefulness, enjoyment, symbolic benefits, trust, satisfaction, attitude toward the recommendation, acceptance of recommendations, perceived risk, privacy concerns, emotional response, and intention to use the virtual assistant. Relevant participant characteristics, including age, gender, personality, personal innovativeness, digital experience, and accessibility needs, may also be examined as explanatory or moderating variables.
Non-invasive consumer neuroscience and psychophysiological techniques may be used during the experimental session. Eye tracking will record gaze position, visual fixations, and eye movements. Electrodermal activity will be used to assess changes in physiological arousal. Electroencephalography will record electrical brain activity associated with cognitive and emotional processing. Automated facial expression analysis will code observable facial movements and emotional expressions. Facial recordings will not be used for biometric identification, authentication, or identity verification.
Participants will receive study information and provide informed consent before data collection. A safety screening questionnaire will be administered when required for the psychophysiological procedures. Data will be coded and stored separately from directly identifying information. Results will be reported only in aggregated, anonymized, or appropriately pseudonymized form.
The study is behavioral and non-therapeutic. It does not involve medication, biological samples, medical treatment, diagnosis, or evaluation of a medical device. The procedures are non-invasive, although participants may experience temporary tiredness or minor discomfort during the experimental session.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 4
- Model description
- Participants will be assigned to one experimental condition involving interaction with a virtual assistant. The conditions will differ in selected virtual assistant features or interaction outcomes. Each participant will complete the experimental task and the post-interaction outcome assessment under the assigned condition.
| Arm | Type | Receives |
|---|---|---|
| High Anthropomorphism and Accurate Response | Experimental | Behavioral: High Anthropomorphism, Behavioral: Accurate Virtual Assistant ResponseParticipants will interact with a virtual assistant displaying a high level of anthropomorphic features. The virtual assistant will provide accurate and relevant responses during the service interaction. |
| High Anthropomorphism and Inaccurate Response | Experimental | Behavioral: High Anthropomorphism, Behavioral: Inaccurate Virtual Assistant ResponseParticipants will interact with a virtual assistant displaying a high level of anthropomorphic features. During the service interaction, the virtual assistant will provide a predefined inaccurate or irrelevant response designed for the experiment. |
| Low Anthropomorphism and Accurate Response | Experimental | Behavioral: Low Anthropomorphism, Behavioral: Accurate Virtual Assistant ResponseParticipants will interact with a virtual assistant displaying a low level of anthropomorphic features. The virtual assistant will provide accurate and relevant responses during the service interaction. |
| Low Anthropomorphism and Inaccurate Response | Experimental | Behavioral: Low Anthropomorphism, Behavioral: Inaccurate Virtual Assistant ResponseParticipants will interact with a virtual assistant displaying a low level of anthropomorphic features. During the service interaction, the virtual assistant will provide a predefined inaccurate or irrelevant response designed for the experiment. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Adults aged 18 years or older.
- Able to understand the study information and provide informed consent.
- Sufficient proficiency in Spanish to understand the instructions and complete the study questionnaires.
- Able to interact with a computer-based virtual assistant and complete the experimental session.
- Willing to complete the study procedures, which may include questionnaires, eye tracking, electrodermal activity recording, electroencephalography, and facial expression recording.
Key exclusion criteria (6 listed)
- Younger than 18 years.
- Unable to understand the study information or provide valid informed consent.
- Insufficient proficiency in Spanish to understand the instructions or complete the questionnaires.
- A visual, hearing, motor, or other condition that prevents completion of the specific experimental task and cannot be accommodated by the study procedures.
- A temporary health condition, discomfort, or technical incompatibility that, according to the study procedures, prevents safe or reliable completion of the experimental session.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| High AnthropomorphismThe virtual assistant will display a comparatively high level of human-like visual, vocal, or conversational characteristics, as operationalized in the experimental protocol. | Behavioural | High Anthropomorphism and Accurate Response, High Anthropomorphism and Inaccurate Response |
| Low AnthropomorphismThe virtual assistant will display a comparatively low level of human-like visual, vocal, or conversational characteristics, as operationalized in the experimental protocol. | Behavioural | Low Anthropomorphism and Accurate Response, Low Anthropomorphism and Inaccurate Response |
| Accurate Virtual Assistant ResponseThe virtual assistant will provide accurate, relevant, and contextually appropriate information during the simulated service interaction. | Behavioural | High Anthropomorphism and Accurate Response, Low Anthropomorphism and Accurate Response |
| Inaccurate Virtual Assistant ResponseThe virtual assistant will provide a predefined inaccurate or contextually inappropriate response during the simulated service interaction. The error will be standardized across participants assigned to this condition and will not concern medical, safety-related, or other high-risk information. | Behavioural | High Anthropomorphism and Inaccurate Response, Low Anthropomorphism and Inaccurate Response |
Primary outcome
Trust in the Virtual Assistant
Time frame: Immediately after the virtual assistant interaction, during the same experimental session
Trust in the virtual assistant will be assessed immediately after the interaction using a pre-specified multi-item questionnaire. Participants will rate each item on a 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). An overall trust score will be calculated as the mean of the completed items. Higher scores indicate greater trust in the virtual assistant.
5 secondary outcomes
User Satisfaction With the Virtual Assistant
Time frame: Immediately after the virtual assistant interaction, during the same experimental session
Intention to Use the Virtual Assistant
Time frame: Immediately after the virtual assistant interaction, during the same experimental session
Acceptance of the Virtual Assistant Recommendation
Time frame: Immediately after the virtual assistant interaction, during the same experimental session
Electrodermal Activity During the Virtual Assistant Interaction
Time frame: From the start to the end of the virtual assistant interaction, for up to 20 minutes.
Visual Attention During the Virtual Assistant Interaction
Time frame: Continuously during the virtual assistant interaction, over approximately 20 minutes.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2026.
- Individual participant dataSharing planned: No. Individual participant data will not be made publicly available because the study includes potentially sensitive questionnaire, facial recording, eye-tracking, electrodermal activity, and electroencephalography data. Aggregated and fully anonymized results may be shared in scientific publications or institutional repositories, subject to ethical, legal, and data protection requirements.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Francisco Rejón-Guardia, Associate professor of marketing, PhD contact
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing High Anthropomorphism, Low Anthropomorphism and Accurate Virtual Assistant Response in people with User Experience With Virtual Assistants in Service Settings, run by University of Malaga at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 24 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Sebastián Molinillo Jiménez - Professor of Marketing, PhD (+34 952131265, smolinillo@uma.es), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Trust in the Virtual Assistant (time frame: Immediately after the virtual assistant interaction, during the same experimental session). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jun 2026.