<Li> Third, the range of intelligence measured by the tests should be wide; that is, the test should be made difficult enough to measure the higher levels of intelligence and at the same time be an adequate measure of the extremely low levels that would probably be found in the Army . </Li> <Li> Fourth, as far as possible, it should be arranged for objectivity of scoring and the elimination of personal judgment concerning correct answers; thus the results of scoring in one camp would be strictly comparable with those obtained in another . </Li> <Li> Fifth, the test should be so arranged that the scoring could be done rapidly and with the least chance of error . Also, this arrangement should be so simple that relatively inexpert assistance could be used in scoring the large numbers of papers . </Li> <Li> Sixth, there must be either different forms or alternative tests of equal difficulty to prevent coaching . </Li>

Who promoted the use of mental testing during world war i