The TOEFL formally known as Test of English as a Foreign Language, is a test of an individuals ability to use and understand English in an academic setting. The test is designed and administered by Educational Testing Service (ETS), and TOEFL is a registered trademark of ETS. It was developed to address the problem of ensuring English language proficiency for non-native speakers wishing to study at U.S. universities. It has become an admission requirement for non-native English speakers at many English-speaking colleges and universities. Additionally, institutions such as government agencies, licensing bodies, businesses, or scholarship programs may require this test. TOEFL scores are valid for two years, after then they are no longer reported.The four-hour test consists of four sections, each measuring one of the basic language skills (while some tasks require integrating multiple skills) and all tasks focus on language used in an academic, higher-education environment. Note-taking is allowed during the TOEFL iBT test. The test cannot be taken more than once a week.ReadingThe Reading section consists of 46 passages, each approximately 700 words in length and questions about the passages. The passages are on academic topics; they are the kind of material that might be found in an undergraduate university textbook. Passages require understanding of rhetorical functions such as cause-effect, compare-contrast and argumentation. Students answer questions about main ideas, details, inferences, essential information, sentence insertion, vocabulary, rhetorical purpose and overall ideas. New types of questions in the TOEFL iBT test require filling out tables or completing summaries. Prior knowledge of the subject under discussion is not necessary to come to the correct answer.ListeningThe Listening section consists of six passages 35 minutes in length and questions about the passages. These passages include two student conversations and four academic lectures or discussions. A conversation involves two speakers, a student and either a professor or a campus service provider. A lecture is a self-contained portion of an academic lecture, which may involve student participation and does not assume specialized background knowledge in the subject area. Each conversation and lecture stimulus is heard only once. Test-takers may take notes while they listen and they may refer to their notes when they answer the questions. Each conversation is associated with five questions and each lecture with six. The questions are meant to measure the ability to understand main ideas, important details, implications, relationships between ideas, organization of information, speaker purpose and speaker attitude.SpeakingThe Speaking section consists of six tasks: two independent tasks and four integrated tasks. In the two independent tasks, test-takers answer opinion questions on familiar topics. They are evaluated on their ability to speak spontaneously and convey their ideas clearly and coherently. In two of the integrated tasks, test-takers read a short passage, listen to an academic course lecture or a conversation about campus life and answer a question by combining appropriate information from the text and the talk. In the two remaining integrated tasks, test-takers listen to an academic course lecture or a conversation about campus life and then respond to a question about what they heard. In the integrated tasks, test-takers are evaluated on their ability to appropriately synthesize and effectively convey information from the reading and listening material. Test-takers may take notes as they read and listen and may use their notes to help prepare their responses.