Helpful customization or furtive manipulation? How Germans see personalisation of online services

To ensure that our online experience is closely tailored to our interests and preferences, algorithms collect our personal data and analyse our online behavior. The data collected are used to infer sensitive information and to shape our digital environments. The personalised advertising, product recommendations, and search engine results generated by algorithms then impact the decisions we make.

The findings of a representative online survey of 1,065 people in Germany conducted by the Max Planck Institute for Human Development and the University of Bristol show that most Germans are well aware that artificial intelligence is used on the internet. And they accept customisation in the contexts of shopping, entertainment, or search engine results. But the survey results also show that internet users are against the personalization of news sources or political campaigning online. Although Germans have serious concerns about data privacy and most of them object to the use of their personal data, many respondents are willing to accept some personalized services. At the same time, only few of them are aware of and make use of available privacy measures.

In detail, the survey shows that 86 per cent of respondents have a fair idea of what the term "artificial intelligence" means. While 70 per cent are aware that artificial intelligence is used in smart assistants such as Siri or Alexa. Fewer than 60 per cent are aware that artificial intelligence is also used to rank results on search engines and to customize advertising on social media.

Whether people are aware of and accept the personalization of services depends very much on the content in question. For example, 80 per cent consider personalised recommendations of restaurants, movies, or music to be somewhat acceptable or very acceptable. In other contexts, acceptance is much lower: just 39 per cent for personalized messages from political campaigns and 43 per cent for customized posts in social media feeds.

In contrast, there is widespread opposition to the use of sensitive personal information such as sexual orientation, religious views, or personal events for purposes of personalisation. Only age and gender information is considered fair game by most respondents (59 per cent and 64 per cent, respectively). Similarly, over 80 per cent of respondents disagree with web services and applications using the content of emails and online messages to personalize online interactions.

Stefan Herzog , head of the research area "Boosting Decision Making" at the Center for Adaptive Rationality at the Max Planck Institute for Human Development, explained: "There is a clear discrepancy in attitudes here. On the one hand, most people accept customized entertainment recommendations, search results, and advertising. On the other hand, they are unhappy with the data that is currently collected to provide this kind of personalisation."

A discrepancy also emerges between German internet users’ attitudes to data privacy and their online behavior. Eighty-two per cent of respondents report being very or somewhat concerned about their data privacy on the internet. But only relatively few make changes to protect their privacy online. Just 37 per cent report using privacy settings on online platforms. And 20 per cent have not engaged with privacy settings or used privacy tools within the past year.

Anastasia Kozyreva , researcher at the Center for Adaptive Rationality at the Max Planck Institute for Human Development, said: "Despite their concerns about data privacy, few users actually take measures to protect themselves. For that to change, the data privacy functions of online services should be more easily accessible, explained in simpler terms, and made easier to use."

Stephan Lewandowsky , Professor of Cognitive Science at the University of Bristol, added: "Respondents across the political spectrum agree on which customised services are acceptable and which are not. The same applies to the collection and use of sensitive information. Most people share similar levels of concern about data privacy.

"It is very interesting that we don’t see any political polarization in attitudes towards personalisation and privacy. Policies aimed at protecting online privacy and regulating personalisation would meet with broad approval independent of users’ political leanings."

Representative Survey

’Artificial intelligence in online environments’ by Kozyreva, A., Herzog, S., Lorenz-Spreen, P., Hertwig, R., & Lewandowsky, S., Representative survey of public attitudes in Germany

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