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Documentation Index

Fetch the complete documentation index at: https://docs.redem.io/llms.txt

Use this file to discover all available pages before exploring further.

What is the Grid-Question Score?

The GQS helps assess data quality in grid questions (also known as matrix questions). It uses machine learning and a defined set of pattern-detection rules to evaluate how respondents interact with grid items.

High-level checks performed

  • Whether the sequence of responses across the grid items shows minimal variance, e.g., always choosing the same option across many rows (straight-lining).
  • Whether the ordering of responses is highly repetitive or patterned (e.g., always lowest → highest → lowest → highest) when that would not make sense for the item content.
  • Whether at least a minimum number of items are present in the grid. GQS supports grids with 5 or more items, while pattern checks are meaningful only from 7 items onward.
To detect response patterns beyond straightlining, grid question data must be submitted to the API in the original display order shown to the respondent.

What Patterns Does the GQS Detect?

Here are some examples of behavioral patterns in grid responses that are analyzed by ReDem: Grid-Question Score patterns