Web Survey Interface Using Pixel-Position Rating to Reduce Bias
Solution Overview
Problem
Existing online opinion survey methods suffer from statistical bias, including information loss and skewing due to rating scale choices and weighted averages, as well as order bias from sequential presentation of options, which can lead to inaccurate preference rankings and market segmentation analysis.
Innovation Solution
A Web-based application using the MEAN framework provides a robust and intuitive user interface with a non-numerical rating scale and drag-and-drop functionality, allowing respondents to rate options simultaneously, minimizing order bias and enabling unlimited position changes, thus reducing bias in preference expressions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a predetermined rating scale is used to collect survey responses, then the survey process is simple and standardized, but information loss and statistical bias occur due to the arbitrary choice of scale values and weighted averages
Solution Approach 1:
The patent replaces the mechanical/algorithmic rating scale transformation system with a direct pixel-position-based rating system. Instead of transforming responses into predetermined scale values through weighted averages, the system directly maps user selections to pixel positions on a display, eliminating the information loss inherent in scale transformations while maintaining simplicity through direct visual interaction.
Solution Approach 2:
The patent changes the parameter of rating representation from abstract scale values to concrete pixel positions. By using the physical pixel density of the display as the measurement basis, the system transforms the rating scale from an arbitrary numerical construct to a direct physical measurement, eliminating bias in the transformation process while maintaining ease of operation through visual interaction.
2Device complexity
If options are presented sequentially to respondents, then the survey interface is simple, but order bias is introduced affecting the accuracy of preference rankings
Solution Approach 1:
The patent transitions from sequential presentation (one-dimensional time-based ordering) to simultaneous presentation (two-dimensional spatial arrangement). By displaying all options at once on the interface, the system eliminates the time-based order bias while maintaining simplicity through a single visual layout, allowing respondents to compare options without sequential constraints.
Solution Approach 2:
The patent performs the preliminary action of presenting all options to the respondent simultaneously before any rating is given. This preliminary simultaneous display eliminates the need for sequential presentation, allowing respondents to see all options at once and rank them without the bias introduced by sequential ordering, while the interface remains simple through a single initial display.
3Productivity
If a weighted average formula is used to compute overall scores, then the survey analysis is standardized, but statistical bias is introduced through arbitrary weighting assignments
Solution Approach 1:
The patent replaces the mechanical weighted average calculation system with a direct pixel-position aggregation system. Instead of applying arbitrary weights to different rating dimensions and computing weighted averages, the system directly aggregates pixel position data from all options, eliminating the statistical bias introduced by weight assignment while maintaining analysis efficiency through direct data collection and processing.
Solution Approach 2:
The patent extracts and removes the biased weighted average calculation step from the survey analysis process. By directly collecting and processing pixel position data without intermediate weighting transformations, the system eliminates the statistical bias inherent in weighted averages while maintaining productivity through simplified direct data aggregation and analysis.
Data Source
AI summary
Web-based opinion survey method, apparatus, and computer-readable media operable to cause propositional function responses to be provided to a survey server from a client device. The propositional functions are P(x), where P and x are the predicate and subject. Each P(x) is evaluated in the client device for subjects, each with a different x. Preferably, the client device displays the subjects within a Web Single Page Application (SPA) running on the client device. Preferably, the SPA displays a nonnumerical scale, the granularity of which is directly proportional to the number of pixels spanned by the scale. For each P(x), the client device displays labeled markers along the scale, to provide an indication of a level of agreement with the expressed P(x). For each P(x) subject, the client expresses an opinion on a position on the scale, whereby a pixel position corresponds to a rating for the selected subject.