ELABORATION AND VALIDATION OF AN EDUCATIONAL VIDEO ON BLOOD PRESSURE MEASUREMENT IN SCREENING PROGRAMS

Caetano, Gideany Maiara; Daniel, Ana Carolina Queiroz Godoy; Costa, Barbara Caroliny Pereira; Veiga, Eugenia Velludo

doi:10.1590/1980-265X-TCE-2020-0237

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Brasil

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Original Article • Texto contexto - enferm. 30 • 2021 • https://doi.org/10.1590/1980-265X-TCE-2020-0237 copy

ELABORATION AND VALIDATION OF AN EDUCATIONAL VIDEO ON BLOOD PRESSURE MEASUREMENT IN SCREENING PROGRAMS

PRODUCCIÓN Y VALIDACIÓN DE VIDEO EDUCATIVO SOBRE MEDIDA DE PRESSÃO ARTERIAL EN PROGRAMAS DE DETECCIÓN

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Objective:

to produce and validate an educational video on the procedure of indirect blood pressure measurement with the oscillometric technique to support actions of blood pressure screening programs in Brazil.

Method:

a methodological study consisting in three stages: 1) pre-production of a script/storyboard; 2) content validation by a committee of 16 experts recruited according to their degrees and training in the area of interest of the study; and 3) final production, recording and edition of the educational video. For data collection, three validated instruments were used that allowed the video to be assessed as to its functionality, usability, efficiency, relevance, verbal language, audiovisual technique, environment, content and proposed objectives. The analysis of the quantitative variables was performed by calculating absolute and relative frequencies, and the categorical variables were measured using means and standard deviations. Items that obtained a CVI > 0.75 were considered valid.

Results:

script validation was performed by eight experts and obtained a CVI of 0.93, while the technical assessment of the educational video and storyboard was performed by three experts and obtained a CVI of 0.97. After accepting the experts' suggestions, the educational video was produced and validated by eight experts, who considered the material valid for application (CVI = 0.94).

Conclusion:

the educational video produced and validated in this study was characterized as an appropriate strategy for teaching the indirect measurement of blood pressure with the oscillometric technique among health professionals who volunteer to participate in blood pressure screening programs in Brazil.

DESCRIPTORS:
Determination of blood pressure; Blood pressure; Hypertension; Screening programs; Education in Nursing; Interprofessional education; Teaching materials; Educational films and videos

Items	Strongly agree n (%)	Agree n (%)	Disagree n (%)	Strongly disagree n (%)	I don't know n (%)
Objectives
They are coherent with the professional practice.	4 (80.0)	0 (0.0)	1 (20.0)	0 (0.0)	0 (0.0)
They are coherent with the research proposal.	4 (80.0)	0 (0.0)	1 (20.0)	0 (0.0)	0 (0.0)
They are adequate to be put into practice.	4 (80.0)	0 (0.0)	1 (20.0)	0 (0.0)	0 (0.0)
Storyboard content
It corresponds to the objectives proposed in the work.	4 (80.0)	0 (0.0)	1 (20.0)	0 (0.0)	0 (0.0)
It facilitates the teaching-learning process.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
It allows understanding the topic.	4 (80.0)	0 (0.0)	1 (20.0)	0 (0.0)	0 (0.0)
It follows a logical sequence.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
It incorporates all the necessary steps to perform the blood pressure measurement.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
It has all the materials to measure blood pressure.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
The information presented in the storyboard is correct.	3 (60.0)	1 (20.0)	1 (20.0)	0 (0.0)	0 (0.0)
Relevance of images and scenes
They illustrate important aspects for the practice of blood pressure measurement.	3 (60.0)	2 (40.0)	0 (0.0)	0 (0.0)	0 (0.0)
They are relevant so that the audience can practice blood pressure measurement.	3 (60.0)	2 (40.0)	0 (0.0)	0 (0.0)	0 (0.0)
They allow for the transfer and generalization of the content learned to different contexts.	3 (60.0)	1 (20.0)	1 (20.0)	0 (0.0)	0 (0.0)
Environment - Scenario
It is suitable for capturing images for the video.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
It is suitable for learning the topic.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
Storyboard verbal language
It is accessible to the target audience.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
It is easy to assimilate.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
Topic inclusion
Objectives of the educational video.	4 (80.0)	1 (20.0)	0 (0.0)	0 (0.0)	0 (0.0)
Objectives of the blood pressure measurement.	4 (80.0)	1 (20.0)	3 (8.6)	0 (0.0)	0 (0.0)
Description of the stages in the blood pressure measurement procedure.	4 (80.0)	1 (20.0)	1 (6.7)	0 (0.0)	0 (0.0)

Items	Strongly agree n (%)	Agree n (%)	Disagree n (%)	Strongly disagree n (%)	I don't know n (%)
Functionality
The video script proposes understandable interventions to perform the blood pressure measurement procedure.	3 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
The video script has the potential to generate positive results.	3 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
Usability
It is easy to learn the concepts that will be used in the video and their applications.	1 (33.3)	2 (66.7)	0 (0.0)	0 (0.0)	0 (0.0)
The video will allow the user to learn the technique of blood pressure measurement.	2 (66.7)	1 (33.3)	0 (0.0)	0 (0.0)	0 (0.0)
The video will assist the user in a clear and efficient way, without being tiring.	2 (66.7)	1 (33.3)	0 (0.0)	0 (0.0)	0 (0.0)
Efficiency
The time proposed is adequate for the user to learn the content.	2 (66.7)	1 (33.3)	0 (0.0)	0 (0.0)	0 (0.0)
The number of scenes is coherent with the time proposed for the video.	2 (66.7)	1 (33.3)	0 (0.0)	0 (0.0)	0 (0.0)
The number and characterization of the characters meet the proposed objective.	0 (0.0)	2 (66.7)	1 (33.3)	0 (0.0)	0 (0.0)
The communication between the characters takes place in an efficient and understandable way.	1 (33.3)	2 (66.7)	0 (0.0)	0 (0.0)	0 (0.0)
The description of the materials that will be used is clear.	2 (66.7)	1 (33.3)	0 (0.0)	0 (0.0)	0 (0.0)
Language description (audio/narration, images/scenes, photographs) is clear.	1 (33.3)	2 (66.7)	0 (0.0)	0 (0.0)	0 (0.0)

Items	Strongly agree	Agree	Disagree	Strongly disagree	I don't know
Items	n (%)	n (%)	n (%)	n (%)	n (%)
Video functionality
It is presented as an adequate tool for the purpose for which it is intended.	8 (10.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
It allows generating positive results in the teaching-learning process on the theme.	6 (75.0)	1 (12.5)	0 (0.0)	0 (0.0)	1 (12.5)
Video usability
It is easy to use.	8 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
It is easy to learn the theoretical concepts that will be used and their applications.	3 (37.5)	4 (50.0)	1 (12.5)	0 (0.0)	0 (0.0)
It allows the user to easily apply the concepts worked on in the practice.	6 (75.0)	2 (25.0)	0 (0.0)	0 (0.0)	0 (0.0)
Video efficiency
Its duration (time used) is adequate for the user to learn the content.	8 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
The number of scenes is coherent with the proposed time for the video.	6 (75.0)	2 (25.0)	0 (0.0)	0 (0.0)	0 (0.0)
Audiovisual technique
The lighting is suitable for watching the scenes.	6 (75.0)	2 (25.0)	0 (0.0)	0 (0.0)	0 (0.0)
The narrator's tone and voice are clear and adequate.	7 (87.5)	1 (12.5)	0 (0.0)	0 (0.0)	0 (0.0)
The narration is used efficiently and is understandable for the audience.	8 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
The figures, images and animations used contribute to interactivity and efficiency.	3 (37.5)	4 (50.0)	1 (12.5)	0 (0.0)	0 (0.0)
The laboratory environment did not interfere with the fidelity of the blood pressure measurement procedure.	7 (87.5)	1 (12.5)	0 (0.0)	0 (0.0)	0 (0.0)
Procedure
Objectives of the educational video.	8 (100.0)	0 (0.0)	0 (0.0)	0 (0.0)	0 (0.0)
The application of the blood pressure measurement technique matches reality.	3 (37.5)	3 (37.5)	2 (25.0)	0 (0.0)	0 (0.0)
The purpose of performing Blood Pressure Screening was clear and understandable.	5 (62.5)	3 (37.5)	0 (0.0)	0 (0.0)	0 (0.0)
The purpose of implementing the Training Program was clear and understandable.	4 (50.0)	4 (50.0)	0 (0.0)	0 (0.0)	0 (0.0)
The objectives of the blood pressure measurement procedure were clear.	6 (75.0)	2 (25.0)	0 (0.0)	0 (0.0)	0 (0.0)
There was a complete presentation of the materials used in the procedure.	5 (62.5)	1 (12.5)	2 (25.0)	0 (0.0)	0 (0.0)
The stages of the procedure are adequate and could be identified.	5 (62.5)	2 (25.0)	1 (12.5)	0 (0.0)	0 (0.0)
The guidelines are adequate and understandable.	6 (75.0)	1 (12.5)	1 (12.5)	0 (0.0)	0 (0.0)
The risk factors are clear and understandable.	6 (75.0)	1 (12.5)	1 (12.5)	0 (0.0)	0 (0.0)

Universidade Federal de Santa Catarina, Programa de Pós Graduação em Enfermagem Campus Universitário Trindade, 88040-970 Florianópolis - Santa Catarina - Brasil, Tel.: (55 48) 3721-4915 / (55 48) 3721-9043 - Florianópolis - SC - Brazil
E-mail: textoecontexto@contato.ufsc.br

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[1] CORRESPONDING AUTHOR
Ana Carolina Queiroz Godoy Daniel carol.enf.usp@hotmail.com