List of Articles سهلگیر Open Access Article Abstract Page Full-Text 1 - To Investigate Mathematical Cognitive Abilities (Spatial and Numerous) and Their CorrelationWith Educational Development, Mental Age and Gender غلامرضا خوئینژاد علیرضا رجایی تکتم محبراد Open Access Article Abstract Page Full-Text 2 - Prediction of Elementary School Student’s Machiavellian Beliefs by Parenting Styles The Prediction of Machiavellian beliefs of elementary students based on parenting styles zahra eshami chehrazi Maryam Ghorbani Asghar Aghaei 10.30486/jsrp.2018.543221 Open Access Article Abstract Page Full-Text 3 - The Effectiveness of Problem Solving Skills Training on Parent-Child Interaction Mohsen Shokoohi Yekta Ali Sharfi Negin Motamed Yegane