Effective 8 October 2026 (external AI presence update). Mark Shopping Items is operated by Louis Krol and the study research team for consented shopping research.
What is recorded
With your consent, the extension records Amazon.co.uk page types, product identifiers, timestamps, foreground dwell time, scrolling, specification/review clicks, and order confirmation during one 15-minute session. Order identifiers are restricted operational data and excluded from research exports. Product-content extracts are archived only for the two focal products.
When the comparison assistant is available, questions and replies are logged. In live mode the study backend sends the question and limited product context to OpenAI. Do not type names, account details, payment information, or delivery addresses into the assistant.
External AI-site activity
Under consent version 2026-10-08-v3-ai, both study conditions also record foreground visits and foreground time on ChatGPT (chatgpt.com and chat.openai.com), Gemini (gemini.google.com), Grok (grok.com), DeepSeek (chat.deepseek.com), Claude (claude.ai), and Perplexity (perplexity.ai and www.perplexity.ai). Records contain the provider name, event time and active duration, plus monitoring/permission status. We do not read or record external AI prompts, answers, page titles, conversation URLs, account details or form values. These records stay on the study server and are not sent to OpenAI. Visits do not establish that AI was used for this shopping task. Native apps, other browsers/devices and unsupported websites are not monitored.
Collection limits
No browsing history, cookies, payment fields, addresses, account-page contents, or activity outside Amazon.co.uk and the listed AI sites are collected. Earlier sessions with Amazon-only consent do not enable AI-site monitoring. Recording begins only after consent and activation and stops on purchase confirmation, withdrawal, or expiry. Uninstalling removes the extension. An early uninstall may generate a timestamped study notification.
Research records
Prolific identifiers are kept separately from pseudonymous research records. Research exports omit voucher codes, authentication tokens, raw order IDs, raw chat text, and product archives. Authorized researchers can inspect the restricted source records on the study server.
Support and withdrawal
Use the study’s Withdraw button to stop recording. Contact the research team through the Prolific study messaging channel for support or a data-removal request.
Contact: krollouis@gmail.com. Retention: Linkable research data are retained for no longer than ten years after research-project completion unless law or an approved institutional protocol requires otherwise. Demonstration records are deleted after 30 days..
Use and security
Records are used to operate and analyze the study. Hosting is provided by Amazon Web Services in the UK; assistant requests are processed by OpenAI. Access is limited to authorized researchers and service providers needed to operate the study. Data are transmitted over HTTPS and are not sold, used for advertising, creditworthiness, or lending. Use and transfer of Chrome API data follow the Chrome Web Store User Data Policy, including Limited Use.
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