Consumers will evaluate the products they have purchased, whether the product meets their need. The discrepancy between what they want and what they have purchased may lead consumers in purchase regret. Personality plays an important role in determining of consumer purchase regret. The aims of this study are to investigate personality influences toward consumer post purchase regret. This study was quantitative and involved 207 undergraduate students at state University in Medan, Indonesia. The statistical analysis showed that Big Five personality traits; extraversion, agreeableness, conscientiousness, neuroticism, and openness to experience were related to post purchase regret, even outcome regret or process regret. The result confirms that anticipated regret is proved to lead to increased levels of effort, when consumer executes his/her behavioural intentions. Behavioural intentions are more likely to motivate and energize the target behaviour when they embodied with anticipated regret. These findings indicate that it is important for managers to focus on the antecedents of regret and to mitigate its consequences.

Penelitian ini bertujuan untuk melihat pengaruh iklim organisasi dan keadilan organisasi terhadap organizational citizenship behavior. Metode penelitian menggunakan metode kuantitatif dengan alat ukur skala masing-masing variabel. Teknik analisis yang digunakan dalam penelitian ini adalah teknik analisis regresi linier berganda. Seluruh pegawai PT. X yang berjumlah 307 orang dijadikan subjek penelitian dengan data yang terkumpul sebanyak 246. Hasilnya ditemukan bahwa iklim organisasi berpengaruh positif dan signifikan terhadap organizational citizenship behavior yaitu sebesar 42.1%. Keadilan organisasi juga berpengaruh positif dan signifikan terhadap organizational citizenship behavior, yaitu sebesar 30.3%. Iklim organisasi dan keadilan organisasi secara bersama-sama berpengaruh terhadap organizational citizenship behavior dengan yaitu sebesar 42.9%. Hasil analisis kategorisasi berdasarkan rerata empirik menunjukkan bahwa rata-rata pegawai PT. X memiliki tingkat organizational citizenship behavior yang tinggi, persepsi iklim organisasi yang positif, dan hampir keseluruhan memiliki persepsi keadilan organisasi yang tinggi.

This study aims to determine the influence of prophetic leadership and job satisfaction toward organizational citizenship behavior (OCB) on employees of Prof. Dr. H. Kadirun Yahya Foundation in Medan. The study used a survey model involving 64 employees of Prof. Dr. H. Kadirun Yahya Foundation in Medan. The data were analyzed using multiple linear regression. The results indicated that prophetic leadership and job satisfaction significantly positively influenced organizational citizenship behavior (OCB). The coefficient of the determinant (R²) of prophetic leadership and job satisfaction showed a value of 0.134, meaning that variation of organizational citizenship behavior is influenced by prophetic leadership and job satisfaction as much as 13.4%, and other factors influenced the rest.

This study aims to find the right strategy that a way of reducing the social loafing tendency among the students. The results showed the higher of achievement motivation will impact the lower social loafing tendency, and affected to student's academic achievement. We conducted a study involving 91 students of Psychology Faculty of the University of Sumatera Utara and divided into 2 groups: the experimental group and the control group. The experimental groups were given a brief achievement motivation training, while the control group did not receive any treatment. The effectiveness of interventions seen through decreasing score in social loafing tendency in the experimental group. Application of achievement motivation training in more details could be one strategy to reduce social loafing tendency.

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