Idevsa.com is an independent guide to psychotherapy, written for people who are thinking about starting therapy and want a straight answer before they spend time or money on it. Everything here is free to read, and nobody pays to be mentioned.
Here is the short version about Idevsa.com: we explain how psychotherapy works, what the main approaches involve, who is qualified to provide them, and what actually happens once you book. We do not provide therapy ourselves.
Why Idevsa.com exists
Starting therapy asks you to make several decisions you have probably never made before. Which kind of therapy? Which kind of professional? What does a license actually prove? What will it cost, and what happens in that first hour?
Those questions have answers. They are just scattered across clinical guidelines, licensing board databases, insurer documents and academic papers, none of which were written for the person asking.
The gap matters because the need is common and treatment often is not. The World Health Organization reports that nearly 1 in 7 people in the world live with a mental disorder, around 1.2 billion people in 2023, most often anxiety and depressive disorders, and that most of them do not have access to effective care.
In the United States the same pattern shows up in treatment numbers. The National Institute of Mental Health estimates that 59.3 million US adults, or 23.1%, were living with any mental illness in 2022, and that just over half of them received mental health treatment in the year before they were surveyed.
Some of what stops people is structural: cost, waiting lists, where they live. Some of it is simply not knowing where to look or what to ask. Clear information cannot fix access, but it can remove one barrier.
What Idevsa.com covers
Four long-form guides, each written to stand on its own:
- Types of psychotherapy. Ten approaches, from CBT and EMDR to DBT and family therapy, what a session in each one looks like, and which have the strongest evidence for which concerns.
- Psychotherapist vs. psychologist vs. psychiatrist. Who holds which title, the training behind it, who can prescribe medication, and what the letters after a name mean.
- How to choose a psychotherapist. Where to search, how to verify a license yourself, what to ask on a first call, warning signs, and what to do about cost.
- Your first therapy session. What to bring, what you will be asked, what confidentiality covers and where its limits are.
Alongside those, our crisis help page lists free, confidential helplines in several countries.
We write about therapy at length because it is worth the words. NIMH notes that evidence-based therapies have been shown to reduce symptoms of depression, anxiety, and other mental disorders, and that rapport and trust between you and your therapist are essential to the work.
Who this site is for
Adults weighing up therapy for themselves, and people trying to help a partner, a friend or an adult child work out what to do next. You do not need any background in psychology to read anything here.
We write first for readers in the United States, so US licensing, insurance and search options come first. Where the picture differs meaningfully in the UK, Canada or Australia, we say so rather than pretending one system fits everyone.
How we research and write
Every factual claim traces back to a source we opened and read: clinical guidelines, government health bodies, professional and licensing associations, and peer-reviewed research. We link that source in the sentence where the fact appears, so you can check it without hunting for it.
Where the evidence is genuinely mixed or thin, we say so instead of picking a side. Where a rule varies by country, state or insurer, we say that too, and we name which one we are describing.
Our editorial policy sets out the full standard: which sources we rank highest, how we fact-check, when we update pages, and how to tell us we got something wrong. You can read how a page moves from research to publication on our editorial team page.
Why you can trust Idevsa.com
Trust has to be earned page by page, so we make ours checkable rather than asking you to take it on faith.
- Every claim is traceable. Facts link to the organization or study they come from, and every guide ends with its full list of sources.
- Every page is dated. You can see when a guide was last reviewed, and we correct figures when the underlying guidance changes.
- Nobody pays for a mention. We take no money from therapists, clinics, platforms or advertisers to feature them, and there are no affiliate links on the site.
- We publish our limits. We say plainly what this site cannot do for you, and every guide links to crisis support.
- Mistakes get fixed in the open. If you report an error, we check it against the source and correct the page.
Organizations we rely on
Our guides draw on the public-health bodies, professional associations and government sources below. We link to them because their guidance is authoritative and freely available. We are not affiliated with any of them, and a link is not an endorsement of Idevsa.com by them.
- National Institute of Mental Health (NIMH): US research and statistics on mental illness and treatment.
- World Health Organization: global data on mental disorders and effective care.
- American Psychiatric Association: patient information on psychotherapy and psychiatric care.
- American Psychological Association: psychology practice, research and the Psychologist Locator.
- NHS: UK guidance on talking therapies and mental health conditions.
- US Bureau of Labor Statistics: training and licensing requirements for mental health professions.
- 988 Suicide & Crisis Lifeline: free, confidential crisis support in the United States.
What Idevsa.com is not
This part is worth reading twice.
- Not a clinic. We do not provide therapy, assessment, diagnosis or referrals, and we have no clinicians on staff.
- Not a crisis service. Nothing here is monitored. If you are in danger right now, use a helpline from our crisis help page.
- Not personal advice. General education cannot account for your history, and reading this site does not create a therapist-client relationship. Our disclaimer explains the limits.
- Not a directory. We do not list, rank, recommend or take payment from individual therapists, clinics or platforms. There is no sponsored content and there are no affiliate links.
Photographs on the site are licensed stock images showing models, used for illustration only. They do not depict real clients, therapists or staff.
How to reach us
Corrections, questions about something we published, or a source you think we missed: use the contact page or email hello@idevsaa.com.
We read everything that arrives. What we cannot do is answer clinical questions, comment on your situation, or find you a therapist in your area, and we will say so rather than guess.