In the 1983-84 school year, the Michigan State Board of Education conducted a survey of early childhood programs in all of the state's school districts. A total of 518 districts, or 93 percent, responded. Of these, 161 districts indicated that they had a 2-year developmental program for children who were old enough to enter kindergarten but were judged not ready for the regular kindergarten program. Schools with a readiness kindergarten program were asked what type of screening instrument they used. All tests used test reviews from the Seventh through Ninth Mental Measurements Yearbooks. Tests were examined for representative norming samples, validity data, and reliability data. Many were found to be deficient in one or more areas and many were found to be inapplicable or inappropriate. None of the screening instruments used by districts in 1984 met criteria of representative sampling, reliability, and validity. It is concluded that placements of young children into 2-year developmental readiness programs should be made with great caution. Given the lack of statistical data, screenings that result in indications of deficiencies should be followed by extensive examinations. (RH)