What defines echoic behavior?

Echoic behavior is defined as language that is controlled by another's language, specifically involving the repetition of vocalizations made by someone else. In this context, when a person hears a verbal stimulus and accurately repeats it back, this demonstrates echoic behavior. It is a fundamental skill in language development and is essential in teaching verbal behavior, as it allows individuals to learn new words and phrases by mimicking the verbal models provided to them.

This ability to echo someone else's verbalizations helps in establishing communication and lays the groundwork for more complex linguistic skills. It is distinct from spontaneous verbalization, as echoic behavior requires an external prompt to occur, demonstrating how verbal behavior can be shaped through imitation.

The other options mention characteristics or behaviors that do not align with the definition of echoic behavior. For example, a child's inability to repeat words does not represent echoic behavior; rather, it reflects a specific communication challenge. Spontaneous verbalization of thoughts pertains to self-generated speech without external prompting, which is different from echoic responses. Non-verbal gestures to communicate refer to different forms of communication altogether, which are unrelated to verbal echoing. Therefore, the correct understanding hinges on the repetitive aspect of vocalization that is directly influenced by another person's speech.