درخت حوزه‌های تخصصی

Based on Shulman's (1986) concept of Pedagogical Content Knowledge (PCK), Technological Pedagogical Content Knowledge (TPACK) emerged and became a helpful framework for comprehending the objectives of using technology in pre-service teacher training programs. The purpose of the present study was to evaluate Iranian pre-service EFL teachers’ (PSEFLTs) perceptions towards their TPACK regarding their gender and academic year of study. To this aim, 254 Iranian PSEFLTs across various academic years of study filled out a 39-item EFL TPACK questionnaire developed by Baser et al. (2016). The questionnaire included seven categories: Content Knowledge (CK), Pedagogical Knowledge (PK), Technology Knowledge (TK), PCK, Technological Pedagogical Knowledge (TPK), Technological Content Knowledge (TCK), and Technological Pedagogical Content Knowledge (TPCK). Based on the collected data, which were subjected to the Kolmogorov-Smirnov test, descriptive statistics, t-tests, one-way ANOVA, and post-hoc analysis, it was found that PSEFLTs generally held mildly favorable perceptions towards their TPACK. Notably, the lowest mean score was observed for the TK component, while the component with the highest mean score was the CK component. In terms of the gender effect, statistically significant differences were found in the TK and TPCK dimensions, where males outscored females in both TK and TPCK and females outscored males in CK. Furthermore, an examination of the relationship between participants' TPACK and their academic years of study manifested a statistically significant difference primarily between freshmen and seniors. The results are expected to encourage curriculum planners to develop PSEFLTs’ training programs by integrating technology courses into the ELT curriculum.

The exchange rate is a critical variable that impacts the economy in the international environment. The purpose of this study is to evaluate and compare the two approaches to exchange rate determination outlined in the Law on Permanent Decrees of the Country's Development Programs under economic sanctions. The analysis involves a theoretical discussion of a set of mathematical equations and software results, obtained from the algebraic and numerical solving of a simulated version of a dynamic stochastic general equilibrium model in the context of the international economy for a small open economy. The model is calibrated using the structural parameters of the Iranian economy. The criterion for evaluating the rule and comparing it with other policy options is the "stability" of macroeconomic variables, a key aspect of the Resistive Economy Strategy as the obliging basic document in economic policy-making and planning. The stability is quantified using the "Variance" index. Based on the results of this study, the adoption of the rule-based inflationary exchange rate determination approach, compared with the contingency approach to exchange rate determination, on the one hand, offers the possibility of achieving lower inflation rates and exchange rate growth pace. On the other hand, it will reduce the instability of selected macroeconomic variables, which is desirable from the perspective of the overall policies of the resistance economy strategy. Therefore, it is recommended that, in the presence of foreign economic sanctions, the economic authority should implement inflationary rule of exchange rate determination based on the current inflation rate.

Objective: This study aimed to examine the direct and indirect effects of parental smartphone addiction on child behavioral problems, with parenting quality as a mediating variable. Methods and Materials: A descriptive correlational design was employed with a sample of 410 parents from Malaysia, determined according to the Morgan and Krejcie sample size table. Participants were recruited through schools and community centers and completed standardized measures assessing smartphone addiction, parenting quality, and child behavioral problems. Data were analyzed using SPSS-27 for descriptive statistics and Pearson correlations, and AMOS-21 for structural equation modeling (SEM). Model fit indices, including χ²/df, GFI, AGFI, CFI, TLI, and RMSEA, were used to assess model adequacy. Findings: Descriptive statistics revealed moderate levels of parental smartphone addiction (M = 32.47, SD = 6.81), relatively high parenting quality (M = 74.26, SD = 9.54), and mild to moderate child behavioral problems (M = 18.63, SD = 5.72). Correlation analyses showed that parental smartphone addiction was positively correlated with child behavioral problems (r = .36, p < .001) and negatively correlated with parenting quality (r = –.41, p < .001). Parenting quality was negatively correlated with child behavioral problems (r = –.44, p < .001). SEM confirmed partial mediation: parental smartphone addiction negatively predicted parenting quality (β = –.39, p < .001), which in turn negatively predicted child behavioral problems (β = –.41, p < .001). The direct path from parental smartphone addiction to child behavioral problems remained significant (β = .25, p = .001), while the indirect effect through parenting quality was also significant (β = .16, p < .001). Conclusion: The study highlights that parental smartphone addiction increases child behavioral problems both directly and indirectly through reduced parenting quality. Interventions should target reducing parental smartphone addiction and enhancing parenting practices to safeguard children’s behavioral health.