Mediator Variable vs Moderator Variable. There is often confusion among students concerning the difference between a mediator variable and a moderator variable. The explanation involves some concepts that haven't been introduced at this point but it can still be worthwhile to discuss these types of variables.n analysis of variance (ANOVA) terms, a moderator effect can be represented as an interaction between a major independent variable and a factor that specifies the appropriate conditions for its operation, that is, the effect of the major independent variable depends upon the value of the moderator variable.
The most common form of myelopathy in human, cervical spondylotic myelopathy (CSM), is caused by arthritic changes (spondylosis) of the cervical spine, which result in narrowing of the spinal canal (spinal stenosis) ultimately causing compression of the spinal cord.
Myelopathy Video. Cervical myelopathy refers to compression on the cervical spinal cord from either a disc herniation or cervical spinal stenosis. Generally, it is more common in the elderly population and is a slow process.Symptoms include incoordination in the hands, a heavy feeling in the legs, or numbness and tingling in the legs.It is generally a slowly progressive condition. It is usually not painful as compression of the spinal cord does not cause pain.enerally, it is more common in the elderly population and is a slow process. Symptoms include incoordination in the hands, a heavy feeling in the legs, or numbness and tingling in the legs. It is generally a slowly progressive condition.