High-context and Low-context Communication refers to the degree to which speakers rely on factors other than explicit speech to convey their messages. This tool, developed by Edward T. Hall,[6] suggests that communication varies according to its degree of field dependence, and that it can be classified into two general categories -- high-context and low-context. Field dependence refers to the degree to which things outside the communication itself affect the meaning. For example, a request for a child to "shut the door" relies comparatively little on context, while a comment containing meaning other than what is on the surface relies largely on context for its meaning to be received. A high-context message of disagreement might be telegraphed to a spouse or a co-worker by the words chosen or the way they are spoken, even if no disagreement is explicitly voiced.