solved I’m working on a psychology question and need an explanation

I’m working on a psychology question and need an explanation to help me understand better.

Read the journal article (http://www.helpforadd.com/mta-study/)Identify the claim in the article (Frequency Claims, Association Claims, Causal Claims) What is the explanation for each claim you have found? How did you know which claim(s) were discussed? Were you able to identify any verb phrases that helped you to distinguish which claim(s) the article mentioned? Now that you have identified the claim(s), you need to evaluate how well the claim(s) was/were supported in the study. Did the research in this article support construct, external, statistical, or internal validity? What questions would you ask to interrogate the claim and on which measures of validity?