ocr: SPEISER SIGHTING REPORT CLibslFiUhliUns This is likewise a two-part classification, with an escalating scale from one to five within each. The Strangeness Factor", rather than ranking by distance or supporting evidence, rates Cases as definitely, probably or possibly explainable as well as strange or highly strange. The SPEISER Probability Factor" concentrates on the creditability of the witness(es) as honest individuals and accurate observers, with ratings from "not credible" to 'highly credible". See the April, 198? issue of the Journal for Mr. Speiser's explanation of this grading method. S ...