Template-Type: ReDIF-Article 1.0 Author-Name: Saeid Asghari Author-Name-First: Saeid Author-Name-Last: Asghari Author-Email: s.asghari64@gmail.com Author-Workplace-Name: Ms, Department of Business Management, International Orientation, Institute of Higher Education of Kheradgerayan Motahar, Mashhad, Iran. Title: The Effect of Certainty in Language on Customer Brand Power Perception and Mental Engagement on Social Media (Case Study: City Bank Branches in Mashhad) Abstract: The purpose of this research is to investigate the effect of certainty in language on brand power perception and mental engagement of City Bank customers in Mashhad on social media. This is an applied research conducted through a descriptive survey. The statistical population included all the customers of City Bank in Mashhad, to a total number of 304,689. The sample size (n = 384) was obtained from Cochran's formula, the individual members of which were selected using simple random sampling. For data analysis, partial least squares (PLS) method was used in SPSS and SmartPLS 4. The results indicated that certainty in language had a positive and significant effect on the brand power perception of the City Bank customers on social networks. In addition, according to the results, certainty in language had a positive and significant effect on the mental engagement of City Bank customers on social networks.Keywords: Certainty in language; Customer brand power perception; Customer mental engagement; Social networks; City Bank Classification-JEL: JEL Keywords: Keywords: Certainty in language; Customer brand power perception; Customer mental engagement; Social networks; City Bank Journal: International Journal of Resistive Economics Pages: 39-48 Volume: 11 Issue: 1 Year: 2023 Month: January DOI: 10.22034/oajre.2023.170171 File-URL: https://www.oajre.ir/article_170171_06aace8d2b864475e7b3e2eb54a8107e.pdf File-Format: Application/pdf File-Function: Full text File-URL: https://www.oajre.ir/article_170171.html File-Format: text/html File-Function: Abstract page Handle: RePEc:trd:journl:170171