What is unique is that Steven Krashen used empirical studies to arrive at conclusions that are largely intuitive. This odd phenomenon in research can be likened to the work of Carl Jung, a researcher whose conclusions went far beyond the merely observable

A colleague recently wrote in response to my comment that people who focus on output instruction would be better off to quit the teaching of languages and go find another profession:

Have studies been done to show the success of Curtain's ideas, in particular the four points raised above? Where is the research supporting Curtain? Or, because she is Helena Curtain, does she not have to provide any research for her

The entire product Curtain offers must ultimately fall like a house of cards, when the teachers who stay with the textbook over the next few decades lose their jobs due to their failure to align with the ACTFL standards, and

Nobody seems to be calling Curtain out on what she is doing. But she is a false prophet in that she has taken Krashen's and Ray's ideas and packaged them in a way that misrepresents them. Her ideas are not