NCT05718973

Brief Summary

This study will evaluate the effect of a short, animated storytelling intervention video on positive psychological capital intervention on immediate and medium-term psychological capital and related constructs, gratitude and happiness. We will also measure voluntary engagement with the content of the short, animated storytelling intervention video on positive psychological capital. In this 4-armed, parallel, randomized controlled trial, 10,000 adult, US participants will be randomly assigned to (1) a short, animated storytelling intervention video on positive psychological capital followed by the psychological capital , gratitude and happiness surveys (2) the surveys only, (3) an attention placebo control video followed by the before mentioned surveys, and (4) an arm that is exposed to neither the video nor the surveys. Two weeks later, participants in all four arms will complete all of the surveys. The primary outcome is psychological capital (immediate and medium-term). Secondary outcomes are gratitude and happiness (immediate and medium-term) as well as voluntary engagement with the short, animated storytelling video content.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
10,000

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jun 2023

Shorter than P25 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 30, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

February 8, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

June 1, 2023

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2023

Completed
Last Updated

May 10, 2023

Status Verified

May 1, 2023

Enrollment Period

2 months

First QC Date

January 30, 2023

Last Update Submit

May 9, 2023

Conditions

Keywords

psychological capitaleducation entertainment interventionshort, animated storytelling

Outcome Measures

Primary Outcomes (1)

  • Immediate effect of the short, animated storytelling intervention video on positive psychological capital

    The immediate effect of the short, animated storytelling intervention video on positive psychological capital, as measured by the CPC-12R, the GQ-6 and the single-item validated happiness scale.

    immediately after watching the video

Secondary Outcomes (3)

  • Medium-term effect of the short, animated storytelling intervention video on psychological capital

    2 weeks

  • Immediate effect of the short, animated storytellingintervention video on gratitude and happiness

    immediately after watching the video

  • Medium-term effect of exposure to psychological capital and related psychological scales on these same outcomes

    2 weeks

Study Arms (4)

Intervention Arm

EXPERIMENTAL

At Time 1, the Intervention Arm will view a short, animated storytelling video designed to promote psychological capital and, immediately thereafter, complete the CPC-12R, the GQ-6 as well as a single-item validated happiness scale. Two weeks later, the participants will complete the CPC-12R, the GQ-6 and the single-item validated happiness scale.

Other: short, animated storytelling video (intervention video)

Scale-Exposed Control Arm

NO INTERVENTION

The Scale-Exposed Control Arm will watch no video content at Time 1, but will complete the CPC-12R, the GQ-6 as well as a single-item validated happiness scale. Two weeks later, the participants will complete the CPC-12R, the GQ-6 and the single-item validated happiness scale.

Attention Placebo Control Arm

PLACEBO COMPARATOR

The Attention Placebo Control Arm will view an attention placebo control video, unrelated to the outcomes measured in this trial, before completing the CPC-12R, the GQ-6 and the single-item validated happiness scale. Two weeks later, the participants will complete the CPC-12R, the GQ-6 and the single-item validated happiness scale.

Other: short, animated storytelling attention placebo video

Un-exposed Control Arm

NO INTERVENTION

The Un-exposed Control Arm will neither watch video content, nor complete the CPC-12R, the GQ-6 and the single-item validated happiness scale at Time 1. Two weeks later, the participants will complete the CPC-12R, the GQ-6 and the single-item validated happiness scale.

Interventions

Participants in the Intervention Arm will view a short, animated storytelling video designed to promote psychological capital.

Intervention Arm

The Attention Placebo Control Arm will view an attention placebo control video, unrelated to the outcomes measured in this trial.

Attention Placebo Control Arm

Eligibility Criteria

Age18 Years - 59 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Registration with the Prolific platform

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Adam M, Rohr J, Greuel M, Nguyen K, Aziz MAE, Gates J, Uberreiter C, Supady A, Barnighausen T. Measuring the effect of short, animated storytelling videos to boost psychological capital in US adults: a randomized controlled trial. Sci Rep. 2025 Nov 18;15(1):40326. doi: 10.1038/s41598-025-26894-1.

Study Officials

  • Till Bärnighausen, Prof. Dr.

    Heidelberg University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
All study investigators and researchers involved in the data analyses will remain blinded to the trial arm allocation for the entire study duration. Unblinding will not be required.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: This is a 4-armed, parallel, randomized controlled trial, conducted purely online
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Attending Physician

Study Record Dates

First Submitted

January 30, 2023

First Posted

February 8, 2023

Study Start

June 1, 2023

Primary Completion

July 31, 2023

Study Completion

August 31, 2023

Last Updated

May 10, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share

Currently not planned. Individual requests may be directed to the corresponding author.