Dr Chris Wagner - Aug 2016

MI Groups: Moving Together Toward Change - Limited to 40 places p/workshop

This training reviews the essential elements of MI, provides detailed information on the process of adapting MI to groups across a variety of formats.

What’s Ken thinking

Last post: 23 March 2016

Ken McMaster blogs about the many issues faced by the human services sector in our modern age.

Online learning

We have a wide range of human service courses available within our Online Learning Site available 24/7.

Guest access is available.

Welcome to HMA

Providing professional human service work for over 28 years.

HMA is a team of professional human service teachers and practitioners offering blended learning solutions to organisations in the social service sector. We work as trainers, programme developers, supervisors and writers in the area of human service work.

Much of our work occurs in the areas of consultation in criminal justice work, social work with men, family violence prevention training programmes, child protection, the interviewing of children experiencing trauma, abuse issues, and psychological assessment and therapy.

We work in New Zealand, Australia, Singapore and Hong Kong.


Recent additions to the Shop

Motivational Interviewing DVD

A starting point in understanding the underlying theory and practice of Motivational Interviewing. Includes interviews with accomplished trainers, researchers and skilled practitioners.

Motivational Interviewing in Groups

A unique clinical resource, this book shows how to infuse the methods and spirit of motivational interviewing (MI) into group-based interventions.

Motivational Interviewing 3rd edition Helping People Change

An authoritative, guide that professionals and students turn to for a complete introduction to motivational interviewing.


A little about us

Formed in the mid 1990s HMA (Hall McMaster & Associates Limited) developed around the work of Ken McMaster. Ken McMaster has a long history of work in the stopping violence, sex offenders, alcohol and drug, and criminal justice areas.

Our mission statement is ‘Working with Passion and Integrity to bring out the best in people’; a statement that is at the core of our philosophy to life.


Meet the team

Ken McMaster

MSW Hons, CQSW, MANZASW. Memberships ANZASW, NZATD, MINT

Suzanne Hall

Registered Psychologist, M.A. (Psychology), B.A., MNZPsS

Nev Trainor

PGDip.Psych.(Clin.), M.Soc.Sc (1st Class Honours), B.Soc.Sc, Registered Clinical Psychologist

Helen Mentha

B.A. (Hons), M.Psych (Clinical), Grad. Cert. Business Administration, Grad. Cert. Professional Writing, M.A.P.S.

Sam Farmer

Registered Psychologist (NZPsB); Memberships: NZPsS; CPSIG(NZ); BPS; ISCP

Gillian Hardie

P.G.Dip. (Child and Family Psychology), M.Ed., B.A

Joel Porter

BS, MA, PsyD Registered Clinical Psychologist (Australia), Board Certifited Clinical Supervisor (Australia), Registered Clinical Psychologist (NZ –inactive) Memberships: MINT, INEBRIA

Daryl Gregory

B.A. (Maori Studies), ANZASW

Jo Dennen

B.A., B.L.A.

Matt Williams

BTcLn, NCALNE. Memberships MINT



Meet our clients

HMA Clients
HMA Clients