In accordance with, at least, an English lexicon, we believe ecumenicalism can be defined in two or three ways.
If one were to think of the concept of ecumenicalism in terms of r-squared and the pooling of variance estimates, one would understand that it is highly unlikely all of the variance will be explained.
Combined, these issues clearly position us to respect what Kahneman and Tversky phrased "judgments under uncertainty, whereby they argued that, "Uncertainty is a fact with which all forms of life must be prepared to contend (Kahneman and Tversky 1982, 509) Moreover, these issues lead to the importance of ecumenicalism and, presumably, tolerance of ambiguity.
First, ecumenicalism means the rejection of dogmatism in favor of open-mindedness and critical thinking, and this represents a threat to our most primitive psychological belief systems.
Interestingly, although ecumenicalism can be related to each of the three types of ambiguity, the type of ambiguity that may be the most relevant involves apparent contradictions whereby "different cues suggest different structures.