Indonesian Language Proficiency Test is a test tool to measure someone's proficiency in spoken and written Indonesian. Indonesian Language Proficiency Test (UKBI) consists of five sections, namely Section I (Listening), Section II (Responding to the Rules), and Section III (Reading) in the form of multiple choice questions and Section IV (Writing) in writing presentation and Section V (Speaking) in presenting oral.The mastery of the mother tongue is something that is very important for a translator or interpreter in addition to mastering a foreign language. Have you tried measuring your ability in your native language?Note:UKBI results of test participants are mapped into seven ranks, predicates (titile), and score ranges. The seven predicates can be lumped together with a statement of Superior Management Issues (Special, Excellent, Superior, Intermediate, Semenjana, Marginal, and Limited). The UKBI Rank and Predicate are described as follows.RankPredicate (title)ScoreIIstimewa (special)725—800IISangat Unggul (very excellent)641—724IIIUnggul (excellent)578—640IVMadya (intermediate)482—577VSemenjana (beginner)405—481VIMarjinal (marginal)326—404VIITerbatas (unsufficient)251—325First Rank, Special Predicate, Score 725-800DescriptionThis predicate shows that test participants have perfect skills in communicating using Indonesian, both oral and written. With this skill, the person concerned has no obstacles in communicating for personal, social, professional and scientific purposes.Second Rank, Very Excellent Predicate, Score of 641-724DescriptionThis predicate shows that the test participants have very high proficiency in communicating using Indonesian, both oral and written. With this skill, the person concerned has no obstacles in communicating for casual, social and professional needs. For complex academic interests, they still have problems.Third Rank, Excellent Predicate, Score 578-640DescriptionThis predicate shows that the test participants have very adequate skills in communicating using Indonesian, both oral and written. With this skill, the person concerned has no obstacles in communicating for social and social needs. Participants are also not constrained in communicating for professional purposes, both simple and complex professionalism.Fourth Rank, Intermediate Predicate, Score 482-577DescriptionThis predicate shows that the test participants have adequate proficiency in communicating using Indonesian, both oral and written. With this skill, the person is able to communicate for both social and community needs well, but still experiences problems in terms of complex professionalism.Fifth Rank, Beginner Predicate, Score 405-481DescriptionThis predicate shows that the test participants have sufficient proficiency in communicating using Indonesian, both oral and written. In communicating for scientific purposes, the person concerned is very constrained. For complex professional and social needs, the person concerned is still experiencing problems, but is not constrained for uncomplicated professional and social needs.Sixth Rank, Marginal Predicate, Score 326-404DescriptionThis predicate shows that the test participants have inadequate proficiency in communicating using Indonesian, both oral and written. In communicating for simple social purposes, the person concerned does not experience obstacles. However, for complex social needs, the person concerned is still experiencing problems. This means that the person concerned is not ready to communicate for professional purposes, especially for scientific purposes.Seventh Rank, Insufficient Predicate, Score 251-325DescriptionThis predicate shows that the test participants have very inadequate skills in communicating using Indonesian, both oral and written. With this skill the test participants are only able to communicate for the purposes of passing. At the same time, this predicate also illustrates that the potential concerned in communicating is still very likely to be increased.