A second possibility that the JSIM effect is not innate but is cultural. Differences have been highlighted in socio-economic status specific such as the divide between high school and collegiate individuals. Moreover, individuals of both genders were angrier and blamed their partners more for sexual infidelities but were more hurt by emotional infidelity. Jealousy is composed of lower-level emotional states (e.g., anger and hurt) which may be triggered by a variety of events, not by differences in individuals' life stage. Although research has recognized the importance of early childhood experiences for the development of competence in intimate relationships, early family environment is recently being examined as we age). Research on self-esteem and attachment theory suggest that individuals internalize early experiences within the family which subconsciously translates into their personal view of worth of themselves and the value of being close to other individuals, especially in an interpersonal relationship.