The study was aimed to explore the factors affecting the implementation of the principles of educational psychology in an actual classroom environment at secondary level. A quantitative design was used in this study. A descriptive survey design was employed for seeking the opinions of teachers about the factors effecting the implementation of the principles of educational psychology in the classroom environment. All the 1042 male and female teachers teaching at secondary level constituted the population of this research study. Stratified random sampling technique was used to select the sample from the population. A sample of 314 male and female teachers teaching at secondary school level was selected on the basis of non-proportional stratified sampling in the four tehsils of Gujranwala District. There were finally 31 question items of the research instrument. Both types of statistics, descriptive and inferential were used to analyze the data. Frequency distribution was used to analyze the opinions of the respondents. Independent sample t-test was also used to analyze the differences between the gender and living area of the respondents. It was concluded that there was no classroom policy, no mechanism to deal with students’ affairs, demotivated teachers, individual differences of students, no training to deal with aggressive learners, no timely feedback to learners and the overcrowded classrooms etc which were the major hurdles in the implementation of the principles of educational psychology in the actual classroom setting. There was a question mark on the knowledge of the teachers regarding educational psychology. Therefore, it was highly recommended by the researcher that there should be a proper classroom policy, teacher training programs, proper students teachers ratio, school facilities, pedagogical skills; and teachers need to apply psychological principles to deal with students effectively.
