the present meta-analysis was conducted to provide a quantitative measure of the overall effects of task complexity on chinese efl learners’ language production. based on the strict inclusion criteria, 12 primary studies were synthesized according to key features. eleven of them were meta-analyzed to investigate effects of raising the resource-directing task complexity. results revealed that ...

smoking has become more prevalent in turkey than it has in those of western countries during the past decade. this study was conducted to make parameter estimations on gender related smoking habits with the minimum of variance. of the ninety-two researches related to smoking habits conducted from 1981 to 2003 in turkey, 60 were deemed appropriate for the application of meta analysis and meta re...

background and aims: infertility is one of the most important conditions in reproductive system and there is no reliable estimates for global prevalence of infertility. therefore, knowing the prevalence of infertility is important and can be effective in decision making. methods: we systematically reviewed all published papers in medline database and scopus (1988–2010). univariate and multivari...

background: to conduct a systematic review and meta-analysis on controlled treatment trials of meta-cognitive therapy for anxiety disorders. materials and methods: studies were included if they employed controlled methodology and treated people above 18 years with anxiety disorders. case studies (with less than 4 cases) and single case designed studies were excluded. a comprehensive literature ...

conclusions although differences between the two products were very close to each other, they reported similar effects on joint bleeds. further clinical studies should be performed by incorporating a standardized measurement in comparative efficacy of apcc and rfviia. results the mean of bleeding reduction in apcc and rfviia were 71.2% with ci 95% (lower limit 86.8% and upper limit 82%) and 72....

context resilience can be seen as an adaption to stress, such as that caused by health problems or disease, that attenuates the negative effects of stress. the present research performed a systematic review and meta-analysis to study resilience scores among adults diagnosed with chronic physical diseases. evidence acquisition electronic databases, including persian language (scientific informat...

background praziquantel, an antischistosomal compound, is used as first-line drug for chemotherapy of schistosoma japonicum since 1984. in this article, we conducted a systematic review and mete-analysis to evaluate the efficacy and safety of different dosages of praziquantel (pzq) for treatment of schistosoma japonicum. evidence acquisition: a number of six articles published in peer-reviewed ...

to conduct a systematic review and meta-analysis on controlled treatment trials of meta-cognitive therapy (mct) for anxiety disorders, studies were included if they employed controlled methodology and treated people above 18 years with anxiety disorders. case studies (with less than 4 cases) and single case designed studies were excluded. a comprehensive literature search identified 15 trials f...

abstract background: research shows that the age at menarche, as an essential element in the reproductive health of women, had been decreasing in the 19th and 20th centuries, and shows a huge variation across different countries. there are numerous studies performed in iran reporting a range of age at menarche. thus, this meta-analysis aimed to determine the overall mean age at menarche of the ...

background: we are living in an era in which different branches of science are growing very rapidly. therefore, retrieving and summarizing all new valid findings on a specific subject is one of the most important priorities of scientists. the aim of the present article is to categorize different review studies within the health domain based on their approach to retrieving and summarizing origin...