Why did Project Blue Book use standardized questionnaires for UFO reports?

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Project Blue Book implemented standardized questionnaires for UFO reports to apply a scholarly and methodical approach to the investigation process. By utilizing these forms, administrators aimed to standardize the documentation of what were often highly subjective experiences.1

The project, which was named after the blue exam booklets commonly used in American college testing, sought to bring scientific rigor to the collection of data regarding unidentified flying objects. Despite this intent, some individuals associated with the program, such as astronomer J. Allen Hynek, later criticized the project for a perceived lack of rigor and an underlying emphasis on debunking sightings rather than pursuing extraterrestrial explanations.1