Out
of a clinical population of 2000 Dutch speaking stammering children and adults
two groups are constructed to study the long term effects of a social cognitive
behaviour therapy for stuttering: an experimental group (“with
therapy”) and a matched control group (“without therapy”). A stratified research design is set up to
measure the post therapy results on stuttering, speech attitude, personality
traits, quality of life (outcome). The
effect is observed in relation to the pre therapy results and principal
variables such as gender, subtype of stuttering, age category (1-6, 7-12, 13-18
and > 18 years) and initial severity of stuttering.