This paper has been strongly supported by a variety of excellent references. As well the information presented was thorough and transparent. Examples were strong and presented for support and clarification, which answered any questions I had while I was reading. This shows strong reflexivity in the research and the writing. The paper was rigorous and well elaborated.

There were some small typos in the body of the paper I have made notes in the PDF of the paper, there weren't many but they need correction. Briefly, in the abstract, the second sentence before the acronym of PLI, pragmatic language impairment needs to come first. Some consistency for the capitalization of ScR as in a few places at the beginning it is SCR. In the first table, all the first letters need to be capitalized and there are two sentences that I highlighted in the PDF that needs correction and or clarification.

There were just two small things that I wanted to point out regarding language usage. One is on p.10 line 34, the use of 'crowd workers' I am not sure what this means. And on p.17 line 15 there is the repetition of the word "Furthermore" I would suggest a change of the word here.