Adolescents disclose less to parents than younger children do. This is developmentally normal, it is part of establishing autonomy, and treating it as a problem to be solved generally makes it worse.
But there is a difference between reduced routine disclosure and a complete absence of it, and the research on what conditions produce disclosure is more specific and more useful than most advice on the subject.
The three routes information travels
Research on parental monitoring distinguishes between three sources of parental knowledge, and their consequences differ substantially.
Adolescent disclosure — the young person volunteering information.
Parental solicitation — asking.
Parental control — rules requiring information as a condition of permission.
Studies examining these separately have found that parental knowledge predicts good outcomes mainly when it comes from disclosure. Knowledge obtained through solicitation and control has weaker and sometimes negative associations.
This is a genuinely counterintuitive finding. It suggests that the value of parental knowledge lies less in the information itself than in what a willingness to disclose indicates about the relationship — and that extracting the same information by other means does not produce the same benefit.
What suppresses disclosure
Several patterns recur in the research and in clinical accounts.
Immediate problem-solving. A disclosure met with a solution rather than a response teaches that the cost of talking is receiving instructions. Most adolescents describing why they stopped telling a parent things cite this.
Overreaction. A disclosure met with alarm disproportionate to the content teaches that talking generates a crisis to be managed.
Information used elsewhere. A disclosure repeated to another parent, to a sibling, or raised again in an argument teaches that disclosures are not contained.
The interrogation format. Direct sustained questioning, particularly face to face at a designated time, produces less information than almost any other arrangement.
Reliably attaching consequences. Where every disclosure produces a restriction, the rational response is to stop disclosing. This is the strongest suppressor and the one adults most often fail to notice they are doing.
What supports it
Side-by-side rather than face-to-face. Driving, walking, cooking, doing a task together. This is folk wisdom that has held up reasonably well, and the proposed explanation is that reduced eye contact and the presence of an alternative focus lower the intensity of the exchange and permit pauses.
Availability rather than scheduling. Disclosure tends to occur at inconvenient moments — late at night, in a doorway, while something else is happening. Adults who are consistently available at those moments receive more than adults who propose a talk.
Responding to the emotion before the content. Acknowledging how something felt before addressing what to do about it. This is the core of most communication training and it is effective largely because it delays the problem-solving that terminates disclosure.
Tolerating the first disclosure without acting on it. A significant disclosure is frequently preceded by a smaller test. How the small one is received determines whether the large one occurs.
Explicit separation of safety from everything else. Stating clearly which categories will always require action and which will not gives an adolescent a basis for predicting the consequence of talking, which is what she is actually trying to assess.
The questions that get answers
Specific beats general. "How was school" is an unanswerable question and receives an unanswerable reply.
Third-person framing lowers the stakes considerably. Asking about how things are going for a friend, or how people in her year deal with something, permits a response that is not a disclosure about herself and frequently becomes one.
Asking for her opinion rather than her experience shifts the register. Adolescents are generally more willing to give an assessment than an account.
And asking about someone else's difficulty is frequently the route to her own.
When it is not ordinary reticence
Some withdrawal warrants concern rather than patience. The features that generally do are: change from an established baseline rather than a longstanding pattern; withdrawal from previously valued activities as well as from conversation; changes in sleep, appetite or functioning; and duration beyond a few weeks.
Direct questions about self-harm and suicidal thoughts do not increase risk. This is a persistent worry among parents and the evidence does not support it; reviews have found no evidence that asking increases ideation, and asking is standard clinical practice for good reason.
The question should be direct rather than euphemistic, because euphemism permits a non-answer.
The uncomfortable summary
Most advice on this subject is about how to get an adolescent to talk. The research suggests the more useful question is what happens after she does.
A young person deciding whether to disclose is running a prediction about the consequence, and she is running it on evidence — every previous disclosure and what followed it. That evidence base is what determines the outcome, and it was assembled over years before the current conversation.