A teacher like me? Different approaches to examining personality similarity between teachers and students

Research suggests that people tend to like others more if they are similar rather than dissimilar to themselves. Likewise, students may tend to prefer teachers with whom they share similar personality characteristics. To test this hypothesis, we examined the role of personality similarity between students and teachers in predicting how much students liked their teachers. Secondary school students ( N = 634) provided self-reports and reported on their teachers’ personality using a Big Five personality scale. Their teachers ( N = 31) also provided self-reports. These reports were then used to compute three indices of similarity; i.e. perceptual similarity, actual similarity, and perceptual accuracy which were used to explain teacher liking. Multilevel linear models showed that perceptual similarity (computed as the profile agreement across student self- and teacher-ascribed Big Five traits) had the largest effect on teacher liking. Teachers described as more agreeable and conscientious were liked by their students more. Findings highlight the importance of considering students’ perceptions of personality similarity with their teachers for understanding how students feel “connected” to their teachers and positively interact with them.

Personality Characteristics of Tulpamancers and Their Tulpas

Tulpamancy is a practice that involves the creation of imagined sentient companions, tulpas, who abide within their human host's mind. The primary aim of our study was to examine the personality characteristics of tulpas and their hosts. Further, we examined the role of personality similarity in predicting relationship satisfaction. Individuals with tulpas completed an online questionnaire of host and tulpa personality and scales of host’s relationship satisfaction. Our pre-registered analyses (https://aspredicted.org/blind.php?x= bi484h) found that hosts reported positive experiences with their tulpas. While we predicted that the personalities of the host and tulpa would be complementary, our results indicated they were more consistent with a similarity perspective. Finally, our hypothesis that the personalities of hosts and tulpas would be related to perceived relationship satisfaction was supported for certain personality characteristics. Our results provide evidence that the tulpa-host relationship may function as a beneficial mechanism in the lives of the host.

Dyadic profiles of personality among older couples: Associations with marital quality

Understanding dyadic personality configurations and their associations with marital quality helps identify couples who are at high risk of marital strain. However, current research on personality similarity among spouses usually confounds couples with similarly positive and similarly negative personalities. This study aimed to (1) provide a clearer classification of dyadic personality profiles among older couples, (2) examine the associations between these profiles and both partners’ marital quality, and (3) explore gender differences in these associations. Data came from 3,178 older couples drawn from the 2010/2012 waves of the Health and Retirement Study. Latent profile analysis was used to identify dyadic personality profiles based on spouses’ standardized Big Five personality scores. Multilevel models examined associations between dyadic personality profiles and each partner’s marital quality, testing for gender differences as well. Six dyadic personality profiles were identified, including two opposite profiles (52%; positive wife–negative husband and positive husband–negative wife), two similar profiles (40%; similarly positive and similarly negative), and two extreme profiles (8%; extremely negative husband and extremely negative wife). Couples in the similarly positive profile reported the best marital quality, whereas couples in the similarly negative profile and the two extreme profiles reported the worst marital quality. The associations between profiles characterized by negative traits and marital quality were more pronounced among wives than husbands. This study advances the understanding of personality similarity and its consequences, suggesting heterogeneous subgroups of dyadic personalities among older couples and providing evidence of gender differences in the implications of personality similarity for relationship quality.

Bonobo personality predicts friendship

In bonobos, strong bonds have been documented between unrelated females and between mothers and their adult sons, which can have important fitness benefits. Often age, sex or kinship similarity have been used to explain social bond strength variation. Recent studies in other species also stress the importance of personality, but this relationship remains to be investigated in bonobos. We used behavioral observations on 39 adult and adolescent bonobos housed in 5 European zoos to study the role of personality similarity in dyadic relationship quality. Dimension reduction analyses on individual and dyadic behavioral scores revealed multidimensional personality (Sociability, Openness, Boldness, Activity) and relationship quality components (value, compatibility). We show that, aside from relatedness and sex combination of the dyad, relationship quality is also associated with personality similarity of both partners. While similarity in Sociability resulted in higher relationship values, lower relationship compatibility was found between bonobos with similar Activity scores. The results of this study expand our understanding of the mechanisms underlying social bond formation in anthropoid apes. In addition, we suggest that future studies in closely related species like chimpanzees should implement identical methods for assessing bond strength to shed further light on the evolution of this phenomenon.

Neural basis of romantic partners’ decisions about participation in leisure activity

Leisure activity is one of key ingredients for individual happiness and life satisfaction. Enjoying leisure activity with one’s partner can increase marital satisfaction. This study aimed to identify the neural basis of making decisions on participation in a leisure activity with one’s romantic partner as well as the relationship between leisure activity and satisfaction with life. Thirty-seven soon-to-be married heterosexual couples were participated in functional MRI while deciding participation in specific leisure activities in the individual, partner, with-friend, and with-partner conditions. We constructed analysis of variance models and investigated couple characteristics such as personality similarity, leisure activity matching rate, and spatial similarity in the bilateral frontoparietal network. The results showed decreased activity in the bilateral hippocampus during the task in the with-partner condition. Individual leisure activity was correlated with quality of life in males, whereas participation in leisure activity might require more cognitive loading on the dorsolateral prefrontal cortex in females. The leisure activity matching rate was correlated with courtship period, personality similarity, and spatial similarity of the right frontoparietal network during the task. These findings suggest that although there are different activation pattern in making decisions on leisure activity between romantic couples, spatial similarity of the partner’s social brain networks may be a marker that predicts how well the couple enjoys leisure activity together. In addition, our couples’ data analysis provides a scientific basis for the saying that romantic couples become more similar the longer they are together.