Therapists rely on a surprisingly wide range of tools, from paper worksheets and standardized questionnaires to specialized physical devices and practice management software. Some tools help measure what’s going on (screening for depression or anxiety), some support the actual work of therapy (processing trauma, tracking emotions), and others keep a practice running behind the scenes. Here’s a practical look at the major categories.
Screening and Diagnostic Assessments
Before therapy begins in earnest, most therapists use validated questionnaires to get a baseline picture of what you’re experiencing. These are short, structured forms you fill out, usually rating how often you’ve had certain symptoms over the past week or two. The most widely used include the PHQ-9 for depression (9 questions), the GAD-7 for generalized anxiety (7 questions), and the PCL-5 for post-traumatic stress. Each produces a score that helps the therapist gauge severity and decide on a treatment approach.
These aren’t one-time tools. Many therapists readminister them every few weeks to track whether symptoms are improving, staying flat, or getting worse. This kind of routine outcome monitoring gives both you and your therapist concrete data rather than relying solely on how a session “felt.” More comprehensive instruments like the CORE-OM (Clinical Outcomes in Routine Evaluation) measure broader psychological distress and are sometimes used on a weekly basis or at the start and end of treatment to evaluate overall effectiveness.
For formal diagnoses, therapists in the United States primarily reference the DSM-5-TR, the standard manual that defines criteria for mental health conditions and provides the codes needed for insurance billing. Outside the U.S., the ICD system published by the World Health Organization is the dominant classification. A survey of nearly 5,000 psychiatrists across 44 countries found that a substantial majority of clinicians outside the U.S. use the ICD in daily practice.
CBT Worksheets and Thought Records
Cognitive behavioral therapy is one of the most common therapeutic approaches, and its signature tool is the thought record. This is a structured worksheet that walks you through examining a distressing thought rather than just accepting it at face value. The NHS outlines a standard seven-step version that moves through a clear sequence: describing the situation, identifying your initial feelings, writing down the unhelpful thought, listing evidence that supports the thought, listing evidence against it, generating an alternative and more realistic thought, and then noting how your feelings have shifted after completing the exercise.
The power of the thought record is that it externalizes what’s usually an invisible, automatic process. Seeing “I’ll never be good enough” written on paper next to a column of evidence that contradicts it creates a different experience than just trying to think your way out of it. Therapists often introduce these during sessions and then assign them as between-session homework, so the skill gradually becomes something you can do on your own.
Beyond thought records, CBT therapists use behavioral activation logs (tracking daily activities and their effect on mood), exposure hierarchies (ranked lists of feared situations to gradually approach), and various goal-setting templates. The common thread is structure: CBT tools turn abstract internal experiences into something visible and workable.
DBT Diary Cards
Dialectical behavior therapy, originally developed for people with intense emotional swings and self-harm urges, relies heavily on a daily tracking tool called the diary card. You fill it out every day between sessions, rating emotions and urges on a 0-to-10 scale (where 0 means “didn’t feel this at all” and 10 means “completely overwhelmed”) and marking yes or no for specific behaviors and whether you used any DBT skills that day.
The diary card typically tracks categories including emotions, urges, target behaviors, and skills used. It gives the therapist a detailed week-at-a-glance view when you come in for your next session, so instead of spending 15 minutes trying to reconstruct what happened since last time, you both have the data in front of you. It also builds self-awareness. Many people in DBT say the simple act of pausing each evening to rate their emotions starts changing their relationship with those emotions.
EMDR Bilateral Stimulation Devices
Eye Movement Desensitization and Reprocessing is a trauma therapy that requires you to focus on a distressing memory while simultaneously receiving some form of alternating left-right stimulation. Therapists use several physical devices to deliver this.
The most recognizable is the EMDR light bar, a horizontal bar with a moving light that your eyes follow back and forth, providing visual bilateral stimulation. For clients who find eye tracking uncomfortable or fatiguing, therapists can switch to tactile tools: handheld tappers or buzzers that vibrate alternately in each hand. The TheraTapper is a popular brand that offers both tactile pulsing and an audio option, delivering alternating tones through headphones. Some therapists simply use their own fingers, moving them side to side for the client to track, but dedicated devices allow more precise control over speed and intensity.
The choice between visual, tactile, and auditory stimulation often comes down to client preference. Some people find the buzzers grounding, while others respond better to eye movements. Having multiple options lets the therapist adjust the experience to what works best for you.
Biofeedback Sensors
Some therapists incorporate biofeedback, which involves monitoring a physiological signal in real time so you can learn to influence it. The most common version in therapy settings is heart rate variability biofeedback, where a sensor tracks the subtle variations in timing between your heartbeats. These variations reflect how your nervous system is balancing its “accelerator” (stress response) and “brake” (relaxation response).
The technology ranges from clinical-grade equipment to consumer devices. HeartMath’s Inner Balance system uses an optical sensor that clips onto your ear and connects via Bluetooth to a smartphone app, displaying a visual pacer (shaped like a flower) that guides your breathing while showing your heart rate variability in real time. Wearable devices like the Apple Watch contain optical sensors that can also measure heart rate variability, and some therapists use these for between-session monitoring. The Lief Smart Patch is another option that can both assess and deliver biofeedback throughout the day.
The practical goal is straightforward: you learn breathing patterns that shift your nervous system toward a calmer state, and the real-time visual feedback reinforces when you’re doing it correctly. Over time, this becomes a skill you can use without the device.
Play Therapy and Sand Tray Materials
For children (and sometimes adults), talk-based tools don’t always fit. Play therapists use carefully curated collections of objects that give clients a nonverbal way to express their inner world. The sand tray is one of the most established formats: a shallow rectangular container filled with sand, paired with a large collection of miniature figures the client arranges to create scenes.
The miniature collection is intentionally diverse, spanning human figures, animals, mythical creatures, buildings, fences, vehicles, landscaping elements, and moldable materials like clay. These aren’t random. Therapists organize them by psychological purpose: nurturing items (dolls, baby items, families, food), protective figures (police, parents, superheroes, pets), combative figures (soldiers, dinosaurs, dragons), and items for emotional release (sensory toys, soft toys). The client’s choices and arrangements reveal themes the therapist can gently explore.
Beyond the sand tray, play therapy rooms typically include hand puppets, masks, building blocks, dress-up hats representing different roles (nurse, pilot), plastic food and dishes, bendable doll families, and toy vehicles. Each item gives a child vocabulary for experiences they may not yet have words for.
Sound Machines for Privacy
One tool you might notice before you even step into a therapist’s office is a white noise machine placed near the door or in the waiting room. This isn’t decorative. Therapy requires confidentiality, and standard office walls don’t always block speech well enough. White noise machines work on the principle that the brain processes recognizable patterns (like speech) but ignores static, random sound. By introducing low-level noise that overlaps with the frequencies of human speech, the machine makes conversations unintelligible from the other side of a wall or door.
The calibration matters. The noise needs to be loud enough to mask speech at a certain distance but not so loud that it becomes distracting or irritating to people in the waiting area. Many therapy offices also incorporate sound masking into their initial build-out, with speakers installed in ceilings or walls, though a standalone machine remains the most common and affordable option for private practices.
Practice Management Software
Behind every therapy session is a layer of administrative work: scheduling, billing insurance, writing clinical notes, sending appointment reminders, and conducting telehealth sessions. Most therapists in private practice use an electronic health record platform that bundles all of these functions together.
The current landscape includes platforms like SimplePractice (widely used for its comprehensive feature set covering scheduling, documentation, billing, messaging, and telehealth), TherapyNotes, Sessions Health, and newer options like Carepatron, which offers a free plan with core features. My Best Practice and Ensora Health position themselves as all-in-one platforms, while Healthie is particularly known for its telehealth capabilities, with paid plans starting around $49 per month. Most of these platforms include a client portal where you can book sessions, complete intake paperwork, and message your therapist securely.
For therapists, the choice of EHR affects daily workflow significantly. A well-designed system automates insurance claim submissions, flags missing notes, and handles the billing codes that correspond to diagnoses from the DSM-5-TR. A clunky one can add hours of administrative time each week. If you’ve ever received an automated appointment reminder or filled out digital intake forms before your first session, you’ve interacted with this layer of the therapist’s toolkit.