David has a habit of screaming, "You idiot, you always mess things up!" whenever his brother makes a mistake or does something he doesn't like. Which strategy for creating a supportive climate does David's outburst violate

Describe your own feelings rather than evaluate others.

Explanation:

In simple word, David in the given case is not behaving genuinely and can be seen as an over dramatized individual with severe anger issues. He is lacking the ability to describe his emotions and feelings in a more sympathetic and humble way.

Rather than being rudely judgmental to others David should describe his own feelings that he does liked the act or mistake done by others.

answer; self-efficacy;

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals