Why are there differences between recalculated reports?


Conjoint.ly performs Hierarchical Bayesian modeling to calculate preference coefficients. Each time a report is recalculated, this modeling is reperformed, creating very minor differences within the reports, within the margin of error.

While the numbers may be slightly different, the relative positioning of the items should have relatively no change, meaning that the overall answer shall remain the same.

For example, comparing the following simulation before and after recalculation, we see that across both calculations the position of revenue and preference share stay the same, with only minor differences in the value amounts.

Before recalculating

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After recalculating

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