Implicit and Inferences: Complete Guide to Developing Understanding
Understanding a text or speech is not limited to decoding words: it is also necessary to grasp what is not explicitly said. Inferences are those mental operations that allow us to fill in the "gaps" in the text, to understand the implicit. This ability, essential for comprehension, is often deficient in children with language disorders or ASD. This guide presents the different types of inferences and strategies to develop them.
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What is an inference?
An inference is information not explicitly present in the text or speech, but that the reader/listener must deduce from the given information and their prior knowledge. Making inferences is "reading between the lines".
📝 Example
"Marie put her swimsuit and sunscreen in her bag."
Inference: Marie is probably going to the beach or the pool. This information is not explicitly stated, but we deduce it from the clues (swimsuit, sunscreen) and our knowledge of the world.
Comprehension relies on a balance between the explicit information in the text and the reader's inferences. A good reader automatically generates many inferences to build a coherent and rich representation of the text.
Types of Inferences
| Type of Inference | Description | Example |
|---|---|---|
| Location Inferences | Deducing where the scene takes place | "The waiter brings the bill." → restaurant |
| Time Inferences | Deducing when the scene takes place | "The children are opening their gifts under the tree." → Christmas |
| Agent Inferences | Deducing who is performing the action | "He examines the patient." → doctor |
| Instrument Inferences | Deducing the object used | "She cuts the cake into equal pieces." → knife |
| Cause Inferences | Deducing why something is happening | "The floor is wet." → it rained |
| Consequence Inferences | Deducing what will happen | "He didn't study for the exam." → he will fail |
| Mental State Inferences | Deducing emotions, thoughts, intentions | "She is clenching her fists." → she is angry |
| Problem/Purpose Inferences | Deducing the character's goal | "He is looking for his keys everywhere." → he wants to go out/leave |
Logical vs Pragmatic Inferences
- Logical Inferences: necessary deductions for the coherence of the text (anaphoras, direct causal links)
- Pragmatic Inferences: deductions that enrich understanding but are not essential (elaborations, predictions)
Development of Inferential Abilities
The ability to make inferences develops gradually with age and experience. It depends on several factors:
- Knowledge of the world: the more knowledge a child has, the more inferences they can make
- Vocabulary: understanding words is necessary to infer
- Working Memory: maintaining information to connect it
- Theory of Mind: understanding the mental states of characters
- Exposure to Narratives: shared reading develops inferences
| Age | Inferential Abilities |
|---|---|
| 3-4 years | Simple inferences about familiar situations (scripts) |
| 4-5 years | Location, agent inferences, basic emotions |
| 5-6 years | Simple causal inferences, predictions |
| 6-8 years | More complex inferences, mental states, intentions |
| 8+ years | Elaborate inferences, irony, second degree |
Difficulties with Inferences
Some children have specific difficulties generating inferences, even with good decoding abilities. These difficulties are common in:
- SLI (Specific Language Impairment): language difficulties that limit inferences
- ASD: difficulties with mental states, tendency towards literal understanding
- Comprehension Disorders: dissociation between decoding and comprehension
- ADHD: attentional difficulties that limit the integration of information
Signs of Inferential Difficulties
- Responds well to literal questions but fails at inferential questions
- Does not understand the overall meaning of a text despite good decoding
- Difficulty explaining the motivations of characters
- Does not make predictions about the continuation of the story
- Very literal understanding, difficulty with humor, irony
- Difficulty making connections between different parts of the text
Evaluation of Inferences
Types of Questions
- Literal Questions: the answer is explicitly in the text
- Inferential Questions: the answer must be deduced
📝 Example of text and questions
"Tom ran as fast as he could, but the bus had already left. He looked at his watch and sighed."
Literal Question: What had left? (the bus)
Inferential Question: Why does Tom sigh? (he is late, he missed the bus, he is disappointed/frustrated)
Evaluation Tools
- Text comprehension tests with inferential questions
- Reading tests (comprehension part)
- Qualitative analysis of answers to questions about stories
Intervention Strategies
💡 Key Principles
- Make explicit the inferential process (modeling aloud)
- Enrich knowledge about the world
- Ask questions that require inferring
- Encourage justifications: "How do you know that?"
- Start from concrete situations before texts
Rehabilitation Techniques
Modeling: The adult "thinks aloud" showing how they make an inference. "Look, the text says he puts on his coat and gloves... I think it is cold outside, or maybe he is going out in winter."
Questioning: Systematically ask inferential questions during reading: "In your opinion, how does the character feel? Why is he doing that? Where does the story take place? How do you know?"
Clues and Justification: Ask the child to find the clues that allow the inference. "What makes you think that in the text?"
Working on Knowledge: Enrich general knowledge about the world (scripts, social situations, vocabulary) that serve as a basis for inferences.
Images and Situations: Start with inferences about images (What happened before? What will happen next?) before moving on to texts.
Suggested Progression
- Inferences on images (familiar situations)
- Location and agent inferences (obvious clues)
- Simple causal inferences
- Inferences about emotions and intentions
- Inferences on short texts then long ones
- Complex inferences (irony, second degree)
Our downloadable inference tools
🔍 Inference Exercises
Short texts with inferential questions. Several levels of difficulty.
Download📷 Sequential Images
Picture stories to work on visual inferences before the text.
Download😊 Emotion Cards
To work on inferences about the emotional states of characters.
Download📖 Story and Narrative Support
Tools to structure understanding of stories and make connections.
DownloadFrequently Asked Questions
It may be a dissociation between decoding and comprehension. The child decodes the words but does not build a mental representation of the text. This may be related to a deficit in inferences, insufficient vocabulary, working memory difficulties, or a lack of knowledge about the world. A speech therapy evaluation will help identify specific difficulties.
During reading, ask questions that go beyond the text: "In your opinion, why is he doing that? How does she feel? What will happen next?". Ask him to justify his answers. Discuss the stories after reading. Make connections with his own life. Enrich his knowledge about the world through various experiences.
Inferential difficulties are common but not universal in ASD. They mainly concern inferences about mental states (emotions, intentions, thoughts of characters), related to theory of mind difficulties. Logical inferences may be preserved. Explicit work on emotional clues and mental states helps develop these skills.
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