nooarali farokhi; Mansour Herfedoost; Hiva Mohamadjani; Soraya Jabari; Farzaneh Raai
Abstract
Context: the math efficacy beliefs instrument was developed by Huinker, Enochs (1995). However, research review implied that there is conflicting results. Goal: current research was conducted to investigate psychometric properties of math efficacy beliefs using G-PCM, an item-response model for polytomous ...
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Context: the math efficacy beliefs instrument was developed by Huinker, Enochs (1995). However, research review implied that there is conflicting results. Goal: current research was conducted to investigate psychometric properties of math efficacy beliefs using G-PCM, an item-response model for polytomous model, on teachers samples. Method: 332 Tabriz city elementary schools teachers were chosen randomly and the math efficacy beliefs was administrated them. Results: Alfa coefficients for two subscales of the instrument were .82 and 0.85 for outcome expectancy and efficacy beliefs respectively. In spite of acceptable classical results, generalized partial credit model results implied that the scale items had major problems. Results showed that all difficulty coefficients were negative, i.e simple items., and information functions only best in low-ability part. Discussion: given the importance of math efficacy beliefs, developing new and efficient instrument with good psychometric properties are advised.
farzaneh roai; ali delavar
Abstract
Background: Meta-analysis is a strong approach, but sometimes leads to wrong and misleading answers. Objective: To conduct case studies of clinical trials and observed cases regarding factors that affect the credibility of meta-research, such as the effect size, the number of analyses, data scale, analyses’ ...
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Background: Meta-analysis is a strong approach, but sometimes leads to wrong and misleading answers. Objective: To conduct case studies of clinical trials and observed cases regarding factors that affect the credibility of meta-research, such as the effect size, the number of analyses, data scale, analyses’ flexibility, method of reporting, and conflict of interest. Research Method: The meta-analysis method was adopted in this research. A case study of corticosteroid therapy in acute bacterial meningitis was discussed in this paper. In addition, the meta-analysis progressed in a step-by-step manner with 6 researches out of 11 ones. Results: The results of the metaanalysis of acute bacterial meningitis indicated that numerous studies have been carried out under such a title in different places. Each author has identified reasons for the use of steroid treatment. Although their reasons were sometimes incomplete, it must be noted that their researches have some things in common.
farzaneh Roaei; ali delavar; noreali farokhi
Volume 1, Issue 4 , July 2011, , Pages 1-25
Abstract
The current paper reviews the concept of meta analysis of Anxiety & Depression researches in 1363-1385 at University of Allameh Tabatabaei university , faculty of psychology and education science . The relevant controls were convenient for the present research in order to study the aspect of ...
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The current paper reviews the concept of meta analysis of Anxiety & Depression researches in 1363-1385 at University of Allameh Tabatabaei university , faculty of psychology and education science . The relevant controls were convenient for the present research in order to study the aspect of Anxiety & Depression, therefore a number of 41 cases from 55 on anxiety including 36 case out of 59 on depression were optimized for meta analysis . Research methodology is structured due to revision in connection with descriptive statistics device ,meanwhile it is meta analysis in terms of inferential statistics , therefore software of CMA (Comprehensive Meta Analysis ) & SPSS used to analyze collected data . The whole Research analyzed in connection with significant of case reliability. Statistical method t (dependent & independent) is significant in scope of cause of effect in anxiety and way of anxiety therapy methods including cause and effect on depression for depression therapy methods .The sampling is cluster form , while sampling method for accessibility in Research linked to causes and anxiety factors , though the anxiety therapy method and accessible sampling method plus random sampling method are in significant range. The methods of randomly and cluster samplings in the field of cause and effect are depression components furthermore randomly sampling method in depression therapy method are significant too. The Research methodology used in cause , comparative and correlation area over cause and effect of anxiety ,while anxiety therapy methods ,the case of experimental & semi experimental methods are in significant range too. The results arisen by this paper demonstrate that Research carried out in the fields of anxiety and depression deserve more revision and modification because novel Researches are critical for application specifically in both fields concerned.
