The Effectiveness of Three Good Things on Gratitude and Psychological Well-being Among Nursing Students

January 6, 2026 updated by: Yudisa Diaz Lutfi Sandi, Kaohsiung Medical University

The Effectiveness of Daily Three Good Thing Intervention on Gratitude and Psychological Well-being Among Indonesian Nursing Students: Solomon Four-Group Design

The goal of this clinical trial is to learn if the daily Three Good Thing intervention can prevent negative mental health outcomes like stress and burnou, and promote Gratitude and Psychological Wellbeing in undergraduate Nursing Students.

The main questions it aims to answer are:

Does the daily Three Good Things intervention effective in promoting gratitude and psychological wellbeing among nursing students?

Researchers will compare four different arms from Solomon Four Group Design to see if the increase in Gratitude and Psychological Wellbeing scores is significantly greater in the groups that received the 3GT intervention.

Participants will be randomly assigned to one of the four groups, and those in the intervention groups will:

  1. Complete a pre-test questionnaire (for some groups) on their current level of Gratitude and Psychological Wellbeing.
  2. Perform the Three Good Things (3GT) intervention by writing down three positive things that happened each day for 7 consecutive days.
  3. Complete a post-test questionnaire to measure the final level of Gratitude and Psychological Wellbeing.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

Research Design: Experimental research using the Solomon Four Group Design approach. This design is used to measure the effectiveness of interventions while specifically controlling and analyzing the potential interaction effects between pre-tests and interventions (testing effect). Population & Sample: The population of this study consisted of all first- and second-year students of the D-III Nursing Study Program at Subang State Polytechnic, totaling 277 people. Intervention Duration: The Three Good Things intervention was carried out for 7 consecutive days.

Independent Variable: Three Good Things Daily Intervention.

Dependent Variables:

  1. Gratitude: Measured using the Indonesian adaptation of the Gratitude Questionnaire containing 11 items.
  2. Psychological Wellbeing: Measured using the Indonesian adaptation of Ryff's Psychological Wellbeing Scale questionnaire containing 18 items.

Study Type

Interventional

Enrollment (Estimated)

277

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Indonesia
    • West Java
      • Subang, West Java, Indonesia, 41211
        • Subang State Polytechnic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Active first- and second-year students in the D-III Nursing Program at Subang State Polytechnic.
  • Willing to participate in the study by signing an informed consent form.
  • Able to use Google Forms online for the intervention.

Exclusion Criteria:

  • Students who are on academic leave.
  • Students who did not complete the daily intervention until the end in groups 1 and 3.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1 (Pre-test, 3GT, post-test)
This group received measurements of the dependent variables (Gratitude and Psychological Well-being) through a pre-test, followed by a Three Good Things (3GT) intervention for 7 days, and ended with the same measurements for the post-test.
Behavioral: Three Good Things
The Three Good Things intervention was self-administered daily for seven days. Participants are required to record three positive things that happened that day and add a brief summary of the reasons behind these events using a Google form prepared by the researchers.
No Intervention: Group 2 (pre-test and post-test)
This group received measurements of dependent variables (Gratitude and Psychological Wellbeing) through a pre-test, did not receive the 3GT intervention, and ended with the same measurements. This group aimed to measure the natural effects of the passage of time and the potential influence of the pre-test itself without any intervention.
Experimental: Group 3 (3GT and post-test)
This group does not receive a pre-test to eliminate testing bias, but receives the Three Good Things (3GT) Intervention for 7 days, and ends with only dependent variable measurements (post-test). This group tests the effectiveness of the intervention without the interaction effect of the pre-test.
Behavioral: Three Good Things
The Three Good Things intervention was self-administered daily for seven days. Participants are required to record three positive things that happened that day and add a brief summary of the reasons behind these events using a Google form prepared by the researchers.
No Intervention: Group 4 (Post Test only)
This group did not receive a pre-test or the 3GT Intervention. They only received a measurement of the dependent variable through a post-test at the end of the study period. This group served as the baseline measurement to isolate the pure effect of the intervention.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The Change in Psychological Well-Being
Time Frame: 7 days (Measured immediately after completion of the one-week daily intervention)
Measurement of changes in psychological well-being scores from pre-test to post-test in participants using the 18-item Indonesian adaptation of the Ryff Psychological Well-Being Scale. These changes will compare the effectiveness of the Three Good Things (3GT) intervention with the control group. Psychological well-being here refers to six dimensions : self-acceptance, positive relationships with others, autonomy, mastery of the environment, life purpose, and personal growth. The total score ranges from 18 to 72 using a 1-4 Likert scale (strongly disagree-strongly agree), where a higher score indicates a higher level of psychological well-being. Reverse scoring is used for favorable items 4, 5, 6, 7, 10, 14, 15, and 16.
7 days (Measured immediately after completion of the one-week daily intervention)
The Change in Gratitude Levels
Time Frame: 7 days (Measured immediately after completion of the daily intervention for one week)
Measurement of changes in gratitude scores from pre-test to post-test in participants using the 11-item Indonesian adaptation of the Gratitude Questionnaire. These changes will assess the ability of the Three Good Things (3GT) intervention to increase participants' tendency to feel and express gratitude in their daily lives using two dimensions : Appreciation for ongoing life experiences and Appreciation for individuals involved in one's life. The total score ranges from 11 to 77 using a 1-7 Likert scale (strongly disagree-strongly agree), where a higher score indicates a higher level of gratitude. Reverse scoring applies to unfavorable item number 3.
7 days (Measured immediately after completion of the daily intervention for one week)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Kaohsiung Medical University

Investigators

  • Principal Investigator: Yudisa Diaz Lutfi Sandi RN, MSN, RN., PhD, School of Health Science, Politeknik Negeri Subang

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

December 23, 2025

Primary Completion (Estimated)

March 1, 2026

Study Completion (Estimated)

March 25, 2026

Study Registration Dates

First Submitted

December 16, 2025

First Submitted That Met QC Criteria

January 6, 2026

First Posted (Actual)

January 13, 2026

Study Record Updates

Last Update Posted (Actual)

January 13, 2026

Last Update Submitted That Met QC Criteria

January 6, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 25.11.02

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Participant data will not be shared to maintain participant confidentiality and to comply with the ethical guidelines. Furthermore, the study protocol and informed consent process do not include provisions for sharing participant data with external parties.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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