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{{Short description|Test variations of web page elements to find the best one}}
'''Multivariate landing page optimization''' (MVLPO) is a specific form of [[landing page optimization]] where multiple variations of visual elements (e.g., graphics, text) on a webpage are evaluated. For example, a given page may have ''k'' choices for the title, ''m'' choices for the featured image or graphic, and ''n'' choices for the company logo. This example yields ''k×m×n'' landing page configurations.
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Multivariate landing page optimization is based on [[experimental design]] (e.g., [[discrete choice]], [[conjoint analysis]], [[Taguchi methods]], [[IDDEA]], etc.), which tests a structured combination of webpage elements. Some vendors (e.g., Memetrics.com) use a "full factorial" approach, which tests all possible combinations of elements. This approach requires a smaller sample size—typically, many thousands—than traditional fractional Taguchi designs to achieve [[statistical significance]]. This quality is one reason that [[choice modeling]] won the [[Nobel Prize]] in 2000. Fractional designs typically used in simulation environments require the testing of small subsets of possible combinations, and have a higher [[margin of error]]. Some critics of the approach question the possible interactions between the elements of the webpages, and the inability of most fractional designs to address this issue.
To resolve the limitations of fractional designs, an advanced simulation method based on the
|author=Howard R. Moskowitz
|author2=Alex Gofman
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