TY - THES AU - Gómez de Ortíz, Diana María PY - 2014 UR - http://hdl.handle.net/10818/10718 AB - This qualitative action research study investigated the impact of peer- and self-assessment strategies on enhancement of oral competence. The 17 participants were semi-fluent B2 (CEFR) speakers of English. However, at the beginning of the study, they... LA - eng PB - Universidad de La Sabana KW - Ingles basico -- Ensenanza KW - Ingles comercial -- Ensenanza KW - Verbo (Gramatica) -- Ingles basico -- Colombia TI - The Impact of Peer and Self-assessment on Teenage B2 Students´ Use of Present Perfect Simple, Present Perfect Continuous and Past Perfect Simple in their Spontaneous Spoken Production ER -