The next 2 questions (24 and 25) concern this situation. A professor carried out a meta-analysis study toexamine the efficacy of cognitive behavioral theory (CBT) for patients with post-traumatic stress disorders(PTSD). She searched the PsychArticles database and found 1,200 articles. She finally selected 140 articles whichwere based on randomized control trials with objective outcome measures for analyses. In all articles that wereincluded, there were 256 and 125 participants fulfilled the DSM-5 diagnostic criteria of PTSD and acute stressdisorder, respectively.
【題組】24. What is the sample size of this meta-analytic study?
(A). 140
(B). 256
(C). 381
(D). 1,200