Due to the growth of online shopping and services, various types of products can be recommended to an individual. After reviewing the current methods for cross-domain recommendations, we believe that there is a need to make different types of recommendations by relying on a common base, and that it is better to depend on a target customer’s information when building the base, because the customer is the one common element in all the purchases. Therefore, we suggest a recommender system (RS) that develops a personality profile for each product, and represents items by an aggregated vector of personality features of the people who have liked the items. We investigate two ways to build personality profiles for items (IPPs). The first way is called average-based IPPs, which represents each item with five attributes that reflect the average Big Five Personality values of the users who like it. The second way is named proportion-based IPPs, which consists of 15 attributes that aggregate the number of fans who have high, average and low Big Five values. The system functions like an item-based collaborative filtering recommender; that is, it recommends items similar to those the user liked. Our system demonstrates the highest recommendation quality in providing cross-domain recommendations, compared to traditional item-based collaborative filtering systems and content-based recommenders.

Cognitive adaptability has been conceptualised as the ability to effectively and appropriately change decision policies (i.e. to learn) given feedback (inputs) from the environmental context in which cognitive processing is embedded. Based on a large sample of 2650 established entrepreneurs in South Africa, this study attempts to determine how entrepreneurs cognitively adapt to unpredictable entrepreneurial environments. Multidimensional constructs representing cognitive adaptability and the Big Five personality traits were operationalised and empirically investigated. It was hypothesised that the Big Five personality trait dimensions of openness to experience, conscientiousness, extraversion and agreeableness are positively related to the cognitive adaptability dimensions of goal orientation, metacognitive knowledge, metacognitive experience, and metacognitive choice and monitoring. Neuroticism was hypthesised to be negatively related to the cognitive adaptability dimensions of goal orientation, metacognitive knowledge, metacognitive experience, metacognitive choice and monitoring. Hypotheses were tested using structured equation modelling and correlational and regression analysis. Results provide support for subcomponents of the Big Five personality traits. Intellectual interest (openness to experience), goal striving (conscientiousness), activity (extraversion), prosocial orientation (agreeableness) were found to be positively related to cognitive adaptability. They were found to be negatively related to prior metacognitive knowledge. Self-reproach (neuroticism) was found to be negatively related to cognitive adaptability. It was found to be positively related to prior metacognitive knowledge. This research builds on and extends existing literature on cognitive adaptability in an entrepreneurial context by bringing together two streams of literature from psychology metacognition and personality traits. The implications of the process for dynamic, adaptable thinking are important in an emerging context such as that found in South Africa. The results of this study will inform the practice of policy makers who are trying to encourage start-up entrepreneurs to think about thinking in unpredictable entrepreneurial environments. In terms of methodology, the use of a sample of established entrepreneurs is desirable for this type of research since metacognition is better studied in entrepreneurs who are involved in a series of activities. / Thesis (PhD)--University of Pretoria, 2016. / Business Management / PhD / Unrestricted

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Management control research has often focused on finding the right fit between management control systems and the unique situational context of organizations, but few studies have examined the role of individual personality traits. Therefore, the purpose of this study was to provide a better understanding about the relationship between the Big Five personality traits, management control systems and organizational commitment. We addressed the research gap regarding how the interaction between the Big Five personality traits and management control systems may affect organizational commitment. To answer the research questions, data was collected using a web survey, which was analyzed in statistical software. In total, 103 responses from managers across 30 Swedish companies, were obtained. Our findings indicate that the interaction of the personality trait conscientiousness and results control, and the interaction of the personality trait agreeableness, and cultural control may affect organizational commitment. Based on these findings, theoretical and practical implications are discussed.

Morality has been a subject of study for centuries, though there is still much that is not understood about the factors that dictate moral decision making and moral identity. This study examines the relationship between the Big Five Personality traits (agreeableness, openness, neuroticism, conscientiousness, and extraversion) as well as empathy and moral decision making. However, we use a slightly different methodology than previous studies on morality and personality by incorporating more relevant moral dilemmas related to the ongoing COVID-19 pandemic in addition to the purely hypothetical dilemmas used in previous research (referred to as standard dilemmas). Additionally, rather than considering only the response to the dilemma as variable, this study also explored the relationship between these personality traits and the guilt felt by the decision made as well as how difficult participants felt it was for them to make the decision. The results suggest that there is a relationship between certain aspects of personality and the guilt felt by moral decisions as well as how difficult one finds making a decision. Additionally, the results imply that the relevance of the dilemma does significantly impact moral dilemma decisions and the feeling associated with such decisions.

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The personality traits of NPC characters are key elements in the complex interactions within games. This study, based on the Big Five personality theory, aims to explore how the perceived personality of NPC characters influences player choices. In the initial phase of the experiment, we designed two original NPC characters based on theories such as the Big Five personality model and presented them to the participants through textual stories and visual images. Subsequently, they were given imagined game tasks that we designed, and they had to choose the NPC character they were more inclined towards in each task. Through analysis, we found connections between certain Big Five personality traits of NPC characters and different tasks. We also discovered discrepancies between the intended personality design of the characters and their actual perceived personalities, with variations observed in the exhibited differences of each personality. In conclusion, the perceived personality traits of NPC characters have various influences and connections to player choice behavior.

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The present study investigated the role of anxiety and avoidance dimensions of attachment and big five personality traits in adaptive and maladaptive dimensions of perfectionism. A pilot study was carried out with 408 (260 males and 148 females) preparatory school students of Middle East Technical University (METU) for the adaptation studies of Almost Perfect Scale-Revised (APS-R). The results of the exploratory and confirmatory factor analyses yielded a 21 item scale with three factors / Standards, Discrepancy and Order. The results of convergent and divergent and criterion-related validity studies revealed evidence for the adaptive and maladaptive dimensions of perfectionism. As for the main purpose of the study, three questionnaires, namely APS-R, Relationship Scales Questionnaire and Big Five Inventory were administered to 604 (377 males and 227 females) preparatory school students of METU. The results of three multiple regression analysis revealed that adaptive perfectionism as measured by Standards scores was significantly predicted by Conscientiousness, Openness and Extraversion. Maladaptive perfectionism as measured by Discrepancy scores was predicted by Neuroticism, Anxiety and Avoidance dimensions of attachment. Order scores used as an additional analysis were found to be predicted by Conscientiousness, Neuroticism, Extraversion and Openness.