This study aims to introduce the concept of money to children with mild mental retardation by using an economic token. The subject of this study was a 10 year old girl with mild mental retardation. This study collects data using observation by monitoring behavior. The technique used in this modification program is in the form of an economic token in order to bring up the desired stimulus response. Initial data collection or baseline was carried out in 7 sessions and then continued with intervention for 5 days with a total of 10 sessions. The results of the study show that the token economy technique can improve the ability of mentally retarded children to recognize the concept of money.

Study procrastination is the deliberate postponement of tasks to the point of subjective discomfort. This study aims to provide useful insights for educators, counselors, and practitioners in designing effective interventions to help individuals overcome study procrastination associated with internet addiction, thereby improving their academic performance and psychological well-being. The hypothesis of this study is to see whether most internet addicts have a high level of study procrastination or not. The research population is 2021 psychology students, Campus V UNP Bukittinggi. The research sample amounted to 11 students. The sampling technique used was purposive sampling. The data collection tool used is the Procrastination Assessment Scale-Students scale (16 valid items). Data analysis using descriptive statistics. The results of data analysis show that there is a significant relationship between internet addiction and study procrastination in students at a high level of study procrastination (63,6%)