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NCT Number: NCT07248904

The Effect of a Transtheoretical Model-Based Educational Intervention on First-Year Nursing Students' HPV Knowledge, Health Beliefs, and Vaccination Behavior Intentions

The purpose of this study is to examine the impact of a structured educational program based on the Transtheoretical Model (TTM) on HPV knowledge, health beliefs, and vaccination behavioral intentions among first-year nursing students. The study will also evaluate how the intervention affects students' HPV vaccine readiness compared to the TTM.

The primary questions addressed by the study are:

* Does the TTM-based educational intervention increase students' knowledge about HPV and the HPV vaccine? * Does the program change students' health beliefs regarding susceptibility, severity, benefits, and barriers to HPV and the HPV vaccine? * Does the program improve students' intentions and readiness to receive the HPV vaccine? * Do students move to a higher behavioral readiness stage (from Precontemplation to Contemplation, Preparation, Action, or Maintenance) after the intervention?

The researcher will compare the TTM-based educational intervention with a control group that did not receive structured education to determine whether a personalized, stage-based approach is more effective in improving HPV-related outcomes among nursing students.

Participants will:

* Complete baseline questionnaires measuring HPV knowledge, health beliefs, and vaccination intention. * The experimental group (intervention group) will receive personalized TTM-based education, face-to-face instruction in modules aligned with the five TTM phases (Precontemplation, Contemplation, Preparation, Action, and Maintenance). * The experimental group will participate in educational sessions designed to raise awareness, correct misinformation, support decision-making, and encourage protective behaviors. * The control group will not receive any educational program. * All participants in the experimental and control groups will complete the same questionnaires again to assess changes after the intervention.

The TTM-based educational intervention provides:

* Staged counseling * Information about HPV and the HPV vaccine * Activities to raise awareness, strengthen motivation, and support vaccination adoption * Personalized feedback based on student readiness * Structured modules focusing on knowledge, belief, and behavior change strategies

The study population included first-year nursing students enrolled in the Faculty of Health Sciences. A total of 88 participants will be recruited and randomly assigned to either the intervention (n=44) or control (n=44) groups through simple randomization.

The results of this study are expected to contribute to the development of evidence-based education strategies in nursing, support of behavioral change models in health education, and strengthen the role of future nurses in HPV prevention, vaccine advocacy, and public health practice.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Faculty of Health Sciences, Adana, CUKUROVA, Turkey (Türkiye)

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • First-year students enrolled in the Nursing Department of the Faculty of Health Sciences
  • Provide written informed consent to participate
  • Agree to attend all educational sessions and data collection appointments during the study period
  • Have sufficient Turkish literacy to read and understand study materials
  • Have not previously received any comprehensive education about HPV infection or HPV vaccination

Exclusion criteria

  • Students who do not agree to participate in the study
  • Students who do not provide written informed consent

Treatment and study plan

TTM-Based Educational Program

Behavioral

A structured, stage-matched educational intervention based on the Transtheoretical Model, delivered face-to-face in five modules aligned with Precontemplation, Contemplation, Preparation, Action, and Maintenance stage

Primary outcomes

  1. Vaccination Behavior Intention Scale

    Time frame: Baseline and after completion of the 10-week intervention (5 sessions delivered every 2 weeks)

    Behavioral intention to receive the HPV vaccine will be assessed using the HPV Vaccination Intention Scale, a 6-item instrument developed based on the Theory of Planned Behavior. The scale evaluates participants' intention to receive the HPV vaccine, with higher scores indicating stronger intention to be vaccinated. The secondary outcome is the change in intention score from baseline to post-intervention.

Secondary outcomes

  1. HPV Knowledge Scale

    Time frame: Baseline and after completion of the 10-week intervention (5 sessions delivered every 2 weeks)

    HPV knowledge will be measured using the HPV Knowledge Scale (HPV-BS), a validated 33-item instrument consisting of four subscales: general HPV knowledge (16 items), HPV screening knowledge (6 items), HPV vaccine knowledge (5 items), and HPV vaccination program knowledge (6 items). Total scores range from 0 to 35, with higher scores indicating greater knowledge about HPV infection, transmission, screening, and vaccination. A Cronbach's alpha coefficient of 0.96 was reported in the Turkish validity and reliability study. The primary outcome is the change in total HPV knowledge score from baseline to postintervention.

  2. Health Belief Model Scale regarding HPV and vaccination

    Time frame: Baseline and after completion of the 10-week intervention (5 sessions delivered every 2 weeks)

    Health beliefs regarding HPV and HPV vaccination will be measured using the Health Belief Model Scale (HBM-HPV), a validated instrument developed by Kim (2016) and adapted into Turkish by Guvenc et al. (2016). The scale consists of four subscales: perceived benefits (items 1-3), perceived susceptibility (items 4-5), perceived severity (items 6-9), and perceived barriers (items 10-13 and 15). Higher scores indicate stronger beliefs within each construct. Except for perceived barriers, all subscales are positively associated with HPV vaccination intention. Cronbach's alpha values for the subscales range from 0.71 to 0.78. The secondary outcome is the change in subscale scores from baseline to post-intervention.

Study contacts

Contact information is provided by the study sponsor or research team.

MÜJDE KERKEZ, Asist. Prof. Dr

CONTACT

[email protected]

+905059718697

Sponsors and collaborators

Lead sponsor

Cukurova University

Other

Registry information

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Nov 25, 2025
Registry last updated
Mar 27, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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