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).
Select a section... Hyphens and DashesâThe Long and the Short of It. The hyphen, the em dash and the en dash are the straight arrows among punctuation marks, an otherwise fairly curvaceous lot. The hyphen (-), the shortest of the three marks, is familiar (sometimes wretchedly so) to most writers. So is the em dash (â), more often called the long dash, or sometimes just the dash.