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Integrated PBL-CBL-CTTM Teaching to Enhance Clinical Self-Efficacy in Endocrine Critical Illness Among Internal Medicine Residents: An RCT (PBL-CBL-CTTM)

28. august 2026 opdateret af: Jianyong Zhao, Chaohu Hospital of Anhui Medical University

Online-Offline Integrated Multimodal Teaching Combining PBL, CBL, and CTTM to Enhance Clinical Self-Efficacy in Endocrine and Metabolic Critical Illness Among Internal Medicine Residents: A Convergent Parallel Mixed-Methods Randomized Controlled Trial

This randomized controlled trial evaluates whether an integrated online-offline multimodal teaching approach combining Problem-Based Learning (PBL), Case-Based Learning (CBL), and Case Three-Dimensional Teaching Method (CTTM) improves clinical self-efficacy and hands-on proficiency in managing endocrine and metabolic critical illness among internal medicine residents, compared to traditional lecture-based learning (LBL).

Ninety internal medicine residents on their first endocrine rotation will be randomly assigned in a 1:1:1 ratio to three groups: (1) Control group receiving traditional LBL alone; (2) Experimental group 1 receiving PBL plus LBL; (3) Experimental group 2 receiving the integrated PBL-CBL-CTTM closed-loop teaching program. All groups receive a standardized 12-hour curriculum on endocrine and metabolic critical illness, including diabetic ketoacidosis, hyperosmolar hyperglycemic syndrome, thyroid storm, and refractory hypoglycemia.

The primary outcome is the clinical skills assessment score (0-50 points). Secondary outcomes include theoretical examination scores, General Self-Efficacy Scale (GSES) scores, a self-developed Endocrine High-Risk Management Self-Efficacy Source Questionnaire (four dimensions based on Bandura's self-efficacy theory), teaching satisfaction, and semi-structured focus group interviews.

The study was conducted from September 2025 to August 2026 at the Fourth Affiliated Hospital of Anhui Medical University, Chaohu, China. This study aims to establish an evidence-based, replicable teaching model that addresses the gap between theoretical knowledge and clinical confidence in managing endocrine emergencies among residents.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

90

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • Anhui
      • Chaohu, Anhui, Kina, 238000
        • The fourth affiliated hospital of Anhui medical university

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Full-time internal medicine residents undergoing their first endocrine rotation at the Fourth Affiliated Hospital of Anhui Medical University
  • No prior endocrine remedial training or advanced study experience
  • No independent management experience with endocrine and metabolic critical cases
  • Ability to complete all 12 hours of standardized curriculum and all post-intervention assessments
  • Voluntary participation with written informed consent

Exclusion Criteria:

  • Prior completion of an endocrine rotation or specialized endocrine training
  • Prior independent management experience in diabetic ketoacidosis, hyperosmolar hyperglycemic syndrome, thyroid storm, or refractory hypoglycemia
  • Inability to complete the full 12-hour teaching schedule due to clinical duties, leave, or rotation transfer
  • Concurrent participation in other teaching intervention research projects
  • Decline to provide written informed consent or withdrawal before randomization

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Control Group (LBL Alone)
Received only in-person one-way didactic lectures (lecture-based learning, LBL) with self-directed review after class. No online discussions, ward-based training, CTTM resources, or post-class debriefing. Total 12-hour standardized curriculum on endocrine and metabolic critical illness. n=30.
In-person one-way didactic lectures with self-directed review after class. Total 12-hour standardized curriculum on endocrine and metabolic critical illness, including diabetic ketoacidosis, hyperosmolar hyperglycemic syndrome, thyroid storm, and refractory hypoglycemia.
Eksperimentel: Experimental Group 1 (PBL+LBL)
Received pre-class online problem-based learning (PBL) via DingTalk (open-ended critical case questions, independent literature search, online group discussion) plus standardized in-person lectures (LBL), with self-directed review after class. No ward-based CTTM training or post-class debriefing. Total 12-hour standardized curriculum. n=30.
Pre-class online problem-based learning (PBL) via DingTalk (open-ended critical case questions, independent literature search, online group discussion) plus standardized in-person lectures (LBL), with self-directed review after class. Total 12-hour standardized curriculum.
Eksperimentel: Experimental Group 2 (Integrated PBL-CBL-CTTM)
Received integrated closed-loop teaching: pre-class PBL (identical to experimental group 1) plus standardized in-person lectures plus post-class ward-based case-based learning (CBL) with attending-supervised hands-on critical case training, case three-dimensional teaching method (CTTM) resources, and post-class debriefing. Total 12-hour standardized curriculum. n=30.
Integrated closed-loop teaching: pre-class online PBL (identical to experimental group 1) plus standardized in-person lectures plus post-class ward-based case-based learning (CBL) with attending-supervised hands-on critical case training, case three-dimensional teaching method (CTTM) resources, and post-class debriefing. Total 12-hour standardized curriculum.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Clinical skills assessment score
Tidsramme: Immediately post-intervention (upon completion of the 12-hour curriculum)
Assessed by group-blinded evaluators using a standardized clinical skills checklist immediately after the 12-hour intervention. Total score range: 0-50 points. Higher scores indicate better clinical proficiency in managing endocrine and metabolic critical illness.
Immediately post-intervention (upon completion of the 12-hour curriculum)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Theoretical examination score
Tidsramme: Immediately post-intervention
Closed-book written examination graded by blinded faculty. Total score range: 0-50 points, covering endocrine and metabolic critical illness knowledge.
Immediately post-intervention
General Self-Efficacy Scale (GSES) score
Tidsramme: Baseline (pre-intervention) and immediately post-intervention
10-item standardized self-efficacy scale (Cronbach's α=0.89), completed anonymously. Higher scores indicate greater general self-efficacy.
Baseline (pre-intervention) and immediately post-intervention
Endocrine High-Risk Management Self-Efficacy Source Questionnaire score
Tidsramme: Baseline (pre-intervention) and immediately post-intervention
Self-developed 4-dimension questionnaire based on Bandura's self-efficacy theory (mastery experience, vicarious learning, verbal persuasion, positive affect; Cronbach's α=0.81, CVI=0.92), completed anonymously.
Baseline (pre-intervention) and immediately post-intervention
Teaching satisfaction scale score
Tidsramme: Immediately post-intervention
5-dimension teaching satisfaction scale (recognition rate and mean score), completed anonymously.
Immediately post-intervention
Focus group interview themes
Tidsramme: Within 1 week post-intervention
Semi-structured focus group interviews (30-40 minutes each) with 24 residents selected via stratified purposive sampling, analyzed using Braun & Clarke six-step thematic analysis method. Explores residents' experiences and psychological mechanisms underlying changes in clinical self-efficacy.
Within 1 week post-intervention

Samarbejdspartnere og efterforskere

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Sponsor

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. september 2025

Primær færdiggørelse (Faktiske)

28. august 2026

Studieafslutning (Faktiske)

28. august 2026

Datoer for studieregistrering

Først indsendt

28. august 2026

Først indsendt, der opfyldte QC-kriterier

28. august 2026

Først opslået (Faktiske)

3. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

28. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • KYXM-202508-021 (Anden identifikator: Ethics Approval Number)
  • AHWJ2025BAp20022 (Andet bevillings-/finansieringsnummer: Anhui Provincial Health Commission)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

This is a medical education randomized controlled trial. All data were collected through anonymous questionnaires and blinded assessments, and all participant identifiers were removed at the time of data collection. No individual participant-level clinical data exist that could be shared. Aggregated study data are presented in the published manuscript.

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