data- based theory

The study aimed to design a quality assurance evaluation model for a sample of Iranian secondary schools. Considering the nature of the research questions, the researchers chose a plan based on relativistic ontology and constructivist epistemology The participants included all educational specialists, principals and teachers of West Azerbaijan that among them; 23 experts were selected purposefully by snowball sampling method. The data collection tool was a semi-structured interview protocol. Data analyzed through grounded theory three-steps coding process (open, axial and selective). The results revealed that quality evaluation model of secondary school education consists 248 open codes, 37 axial codes and finally 5 selective codes. Among axial codes 7 items belonged to causal factors, 7 categories are related to contexts and backgrounds, 12 categories are belonged to intervener factors, 6 categories are related to strategies, 6 categories are related to consequences and one category is considered as core phenomenon. Finding of the research reveal that education quality assurance evaluation is affected by facilities and equipment, objectives of secondary education, curriculum, teaching method, teaching-behavioral competence of teacher, organizational factors, educational content, needs and expectations of stakeholders and financial problems; it can lead to educational productivity and academic satisfaction