You can group sub-types according to different criteria- symptoms (overt, severe, many secondary effects, etc) - recovered as child (did the person recover as a child or not) - causes (due to a malfunctioning in the brain processes of speech) - origin (due to "bad" genetics or neurological incident like infection or accident) - origin (family history yes or no) - reaction to treatment -
Sub-types can be grouped strictly like family history (yes or nor), but others are continuous variables like severity of stuttering. Are there really strict sub-types or are they all just continuous variables?
The number of causal sub-types is the number of intermediate steps to produce continuous speech, because that is the number of times something can go wrong.
- recovered as child (did the person recover as a child or not)
- causes (due to a malfunctioning in the brain processes of speech)
- origin (due to "bad" genetics or neurological incident like infection or accident)
- origin (family history yes or no)
- reaction to treatment
-
Sub-types can be grouped strictly like family history (yes or nor), but others are continuous variables like severity of stuttering. Are there really strict sub-types or are they all just continuous variables?
The number of causal sub-types is the number of intermediate steps to produce continuous speech, because that is the number of times something can go wrong.