Practice Based Evidence Masterclass


Sixty years of research into the effectiveness of psychotherapy can be boiled down to three major findings


  • Psychotherapy is effective, with 60 – 80% of clients treated improve considerably depending on how improvement is defines.
  • There is no “one size fits all” approach to therapy. All legitimate therapeutic approaches (and some of the sham ones) are about as effective as each other for most if not all major diagnostic or symptom groups.
  • Real world outcomes are consistently worse than research trials. part of this is due to the strict inclusion criteria of research trials, but a big part is that in the real world too many clients drop out, too many clients are allowed to continue ineffective therapy regimes, and too many clients discontinue therapy after receiving only partial benefits.


Most psychology practitioners describe themselves as using evidence based practice. What that means normally is that they choose one of the known effective therapy approaches and apply it to clients.

Practice based evidence is much more. It involves taking an individualised scientific approach to each client, tracking outcomes, testing hypotheses, changing approaches when hypotheses are disproven, but most importantly practice based evidence is empirical.


What is your personal drop out rate ?

What is your overall personal effect size ?


Effect SIze

Figure 1: Effect size of all psychologists practices within Benchmark Psychology.


If you have implemented a practice based evidence approach, you will be able to answer these two questions. If you have not implemented this approach, this workshop is designed to help you take the steps required to build this approach into your practice.


Workshop content


The workshop will be highly interactive and experiential and focus on a bottom up approach to implementation of outcome informed practice. Content will cover the three main levels listed below.


Individual Client

  • n = 1 methodology
  • turning clinical intuition into testable hypotheses
  • prevention of drop-out
  • prevention of early discontinuation
  • failing successfully when therapy does not work
  • Using outcomes and client feedback to guide therapy


  • How to use outcome tracking to guide supervision content
  • identifying markers of drop out or therapy failure early
  • building feedback and outcomes into supervision itself
  • Benchmarking supervisee effectiveness
  • how to know when to trust the data

Services / Practices

  • Building a “culture of feedback” into a service
  • Guideliens for successful implementation within a service
  • Common pitfalls
  • IT infrastructure and how to get the most bang for your buck


Scheduled Masterclasses

[nwm_map id=”2″]

About Aaron


Dr Aaron Frost is a Clinical Psychologist of 15 years experience.  He has a background in both research and in clinical settings and currently is the director of Benchmark Psychology.


Benchmark Psychology is the culmination of Aaron’s passion for accountable outcome based practice in psychology.  Using the principles of Feedback Informed Therapy inspired by leaders in the field such as Scott Miller and Michael Lambert, Benchmark Psychology has automated outcome data collection and uses this data routinely in treatment planning.


Benchmark Psychology also goes one step further, aggregating this data to the clinician level.  Meaning that each and every psychologist is able to view their own aggregated data.  All psychologists in this system know what their overall effect size is as well as how they compare to all the other psychologists.  This has created a unique environment where the team is driven by the pursuit of clinical excellence.


Aaron is a STAP accredited supervisor, and routinely provides outcome informed supervision to psychologists around the country.