---

Aim and Background: Children's cancer is a special bio-psychological status that challenges the perceived social support and locus of control of mothers with different educational levels and affects their psychological adjustment. Therefore, the aim of this study was to investigate the direct and indirect role of education, with the mediating role of locus of control and perceived social support, on psychological adjustment of mothers of children with cancer.
Methods and Materials: This research is descriptive-correlational. The statistical population of the study consisted of all mothers of children with cancer who referred to the clinics of pediatricians of Mashhad. The sample size of 220 people was selected using targeted sampling method. Data were collected using psychological adjustment to illness scale, Rotter locus of control, multidimensional perceived social support, and demographic characteristics.
Findings: According to the results of this study, the increase in education directly and indirectly through increased perceived social support reduced maladjustment (P<.01). Also the increase in education directly related to increase in internal locus of control and decrease in external locus of control but has not indirect relationship on adjustment.
Conclusions: According to the findings, it can be concluded that increased education through perceived social support mediates the psychological adjustment of mothers. Increasing levels of education can also lead to an increase in internal control and a decrease in external control.

---

Aim and Background: Multiple sclerosis (MS) is a chronic inflammatory disease characterized by demyelinated lesions in the brain, spinal cord, and optic nerve. When myelin is destroyed by plaque formation, nerve fiber conduction is reduced or lost. This phenomenon interrupts the nerve messages sent from the brain and causes the symptoms of the disease. This disease leads to dysfunction of cognitive functions. The main purpose of this study was to investigate the relationship between sensory processing sensitivity on multiple sclerosis mediated by risk decision making function.
Methods and Materials: The research method is descriptive correlation of structural equation management. The statistical population of the study was all patients with multiple sclerosis referred to the Iranian MS Association, from which 200 people were selected by non-random sampling method with inclusion and exclusion criteria. In order to evaluate the level of sensory processing sensitivity in patients from personal scales with high sensory processing sensitivity, Aaron and Aron (1997) and in order to assess the level of risky decision making and severity of multiple sclerosis in patients, respectively used the IOWA gambling test Damasio, Bashara, Damasio, Anderson (1994), Extensive Disability Status Scale Kurtzke (1983).
Findings: The analysis showed that there were significant correlations between and sensory processing sensitivity with multiple sclerosis and risk full decision making. According to the results of the mediation؛ the effect of sensory processing sensitivity on the multiple sclerosis, was moderated by the risk full decision making (p>0.001).
Conclusions: As a result of structural equation sensory processing sensitivity risk full decision making, and multiple sclerosis according to indicators of fitness is good.