Final answer:
Option 3: Decreased student engagement is not a benefit of the language experience approach, which rather tends to increase student engagement and offers other benefits such as enhanced vocabulary development, improved reading comprehension, and personalized learning experiences.
Step-by-step explanation:
The language experience approach (LEA) offers several benefits in the context of literacy and language development. However, Option 3: Decreased student engagement is not one of those benefits. In fact, LEA is known for increasing student engagement by personalizing learning experiences and relating reading and writing directly to the students' own experiences.
Benefits of the LEA include enhanced vocabulary development, as students are using words and phrases from their own language repertoires and experiences. Additionally, they tend to show improved reading comprehension because they are making personal connections to the texts they are creating and reading. Furthermore, LEA fosters personalized learning experiences by building from the individual's existing knowledge and language skills, which can include multilingual toolsets, as seen in the case studies mentioned above.