A fourth study of the impact of classroom assessment practices on students and their learning in the context of the classroom was undertaken by Bangert-Drowns, Kulik, and Kulik (1991), who investigated the effects of frequent classroom testing.
A hyphen (-) is a punctuation mark used to join the separate parts of a compound word. A hyphen is a joiner. A hyphen is used to join the words of a compound adjective (e.g., five-page document), to join the words of compound noun (e.g., cooking-oil), and to join a prefix to a word (e.g., re-examine).
The use of hyphens is called hyphenation. The hyphen should not be confused with dashes (â, â, â, â), which are longer and have different uses, or with the minus sign (â) which is also longer.Hyphens are mostly used to break single words into parts, or to join ordinarily separate words into single words.Spaces should not be placed between a hyphen and either of the words it connects except when using a suspended or hanging hyphen (e.g. nineteenth-and twentieth-century writers).he hyphen should not be confused with dashes (â, â, â, â), which are longer and have different uses, or with the minus sign (â) which is also longer.