Describes an experiment designed to determine which language errors interfere to the greatest degree with comprehension by native speakers of the language. For this purpose, an instructor prepared a list of most serious Spanish language errors which was submitted to native speakers for evaluation in terms of comprehension and acceptability. (MES)

This study presents a synthesis of major dimensions of the second language teaching-learning process. The first four chapters survey some factors which are considered important in this process and examine what is known and unknown about each one. Subsequent chapters deal with the following problems: (1) language learners' errors, (2)…