Longitudinal collection of data to inform the Things You Do/Big 5 model of mental health

Longitudinal collection of data to inform the Things You Do/Big 5 model of mental health in Australians aged 16 and over

Status

Not yet recruiting

Phases

Unknown

Study type

Observational

Source

ANZCTR

Registry ID

ACTRN12626000132347

Enrollment

5000

Registered

2026-02-03

Start date

2026-07-31

Completion date

2028-07-01

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The primary objective of this protocol is to collect data from a broad range of people, about their activities, personal characteristics, circumstances, cognitive characteristics and mental health outcomes. This information will be used to inform, develop and test the TYD model of mental health. Key questions to be explored include the: 1. Relationship between the frequency of specific actions and mental health outcomes 2. Relationship between (1) and personality and demographic characteristics 3. Relationship between (1) and (2) and cognitive characteristics (for example, learning and memory, and attributional style) 4. Relationship between (1), (2) and (3) and stressors over time (longitudinal modelling). These questions will improve our understanding of the factors that mediate the relationship between our daily actions and our mental health for different groups of people. It will help determine whether there are optimal combinations of actions for different groups of people and conversely, whether there are combinations that indicate a person is at particular risk of symptoms or even chronicity of symptoms. Our ability to validly answer these questions requires large and diverse samples.

Interventions

The primary objective of this observational study is trial is to collect sufficient data to answer important research questions about the relationship between daily actions, mental health and factors that may affect these. Data will be collected from a broad range of people, about their activities, personal characteristics, cognitive characteristics and mental health outcomes. This information will be used to inform, develop and test the Things You Do (TYD) / Big 5 model of mental health. Participants will be asked to respond to online questionnaires, including: Demographics (18 items); Things You Do Questionnaire (15 items); Patient Health Questionnaire (9 items); Generalised Anxiety Disorder (7 items); Kessler-10plus (14 items); Personality Inventory (10 items); Health Locus of Control Scale (7 items); Overall Life Satisfaction (1 item); Modified Social Stress Scale (15 items); Reflections Questionnaire (3 items). Total expected completion time: 20 minutes, Participants will be invited to opt-in to complete monthly questionnaires for up 24 months.

Eligibility

Sex/Gender

All

Age

16 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

Inclusion criteria are: (a) Australian resident, and (b) aged 16 or over.

Exclusion criteria

Unable to read and understand English.

Outcome results