Interpretation of the results depends entirely on the specific school or program using the test. Each institution sets its own benchmarks and cutoff scores to determine readiness for kindergarten. Some may focus on specific skills being above a certain percentile, while others might use a holistic approach considering multiple areas of development.
To find out the passing range, you must contact the specific school or program administering the Brigance test. They are the only ones who can tell you what scores they consider acceptable for kindergarten entrance.