A 37-item, self-report tool used to measure the level and nature of generalized anxiety in children. The RCMAS, informally referred to as the ‘What I Think and Feel’ scale, was originally adapted from the Children’s Manifest Anxiety Scale (CMAS) in order to allow for a wider and more accurate measurement of anxiety. Items contained in the RCMAS—primarily “I” sentences—describe various feelings or experiences a child may have. Response options are binary—“Yes”, if the statement is applicable to a child’s current feelings or experiences; or “No”, if it is non-applicable. Twenty-eight of the items directly correlate with anxiety, and are arranged and scored based on sub-indicators of anxiety—physiological symptoms (10 items), obsessive thoughts and/or worries (11 items), and social disturbances (7 items). The final nine items, called “Lie” items, are meant to detect any incorrect reports (i.e. a child who purposefully denies a symptom of anxiety when he/she is knowingly aware of its existence). A total cumulative score can be derived for the RCMAS, as well as for the four sub-scales—Physiological Anxiety, Worry/Oversensitivity, Social Concerns/Concentration, and Lie. The higher the score received, the greater the likelihood for anxiety, or the possibility that the child has lied in his/her responses. The tool takes about 10 to 15 minutes to administer, and can be administered in individual or group settings by clinicians, teachers, and/or researchers.