Mrs Crosby Has Been Asked to Evaluate Hector for a Possible

Mrs. Crosby has been asked to evaluate Hector for a possible communication disorder. Hector's family came from Miami but they speak very little English. Mrs. Crosby has assessed Hector in both English and Spanish. What else can she do to be sure that she has adequately measured his true communicative competence?

A) Interview his parents
B) Administer a third test in Spanish
C) Listen when Hector is involved in authentic conversational behavior
D) Interview his teachers