
Studies present a single yes/no question to participants on cards which can contain a title, image, description, and price to add context to the question or can be varied to explore their effects. Machine learning techniques analyze responses, assessing up to 40 question card attributes and participant demographics, to identify features with real predictive importance for increasing the likelihood of positive responses. Only participants with predefined characteristics are permitted to participate, ensuring that the study aligns with the target audience. Via the Linesol mobile app, participants answer questions (min. 10 seconds) receiving $0.05 per response ($18 per hour), fostering high quality data for actionable insights.
Define a yes/no question like 'Would you buy this product?' and enhance it with question card features such as Titles, Images, Descriptions, and Prices. This approach enables the exploration of how different design elements (such as various images showing different designs) impact the likelihood of positive responses. Each participant responds to one specific configuration, and collected along with their anonymized user features for analysis.




Select from a catalogue of categorical user feature categories, such as age, purchasing behavior, or environmental concern. Existing categories can be browsed alongside live demographic summaries of the participant base, helping you understand how each feature is represented before including it in a study. For each category, a set of categorical features can be selected for analysis. These selections define the participant demographic for the study, ensuring that only users with compatible characteristics are eligible to participate. If a relevant feature is not available in the catalogue, new user features can be submitted. These may be provided either as direct categorical values or as composite (latent) variables. By incorporating multiple categorical user features, the study ranks these characteristics (along with question card features) to understand how they influence the likelihood of a positive response to the question.
Data Analysis
Unlock unparalleled insights using machine learning to rank the most influential features on the likelihood of a positive response, grouped by their net positive or negative effect. The analysis also includes price optimization and guidance for improving future studies. Upon completion of the study, the results include: The full raw dataset (CSV), structured study results (CSV), and a detailed analytical report (PDF). This ensures both immediate insights and full transparency for independent analysis. Live participant demographics, study launches and results are accessible via the API.
Impact of Question Card Features

Optimal Price Determination
Impact of User Features

Suggested Improvements