Final answer:
Effective treatment for vaginismus could be indicated by a patient's statement about increased confidence and reduced pain or anxiety associated with sexual activity.
Step-by-step explanation:
A patient with vaginismus who indicates that treatment has been effective might express a newfound confidence in their ability to engage in sexual activities without pain or psychological discomfort. Such a statement would suggest an improvement in the involuntary contraction of vaginal muscles that is characteristic of vaginismus. If the patient mentions having more control over their muscles, experiencing less anxiety around the thought of intercourse, or successfully engaging in sexual activities without pain, these would be indicators of effective counseling and treatment.