Video Length Research Articles

Addressing Confounding Feature Issue for Causal Recommendation

In recommender systems, some features directly affect whether an interaction would happen, making the happened interactions not necessarily indicate user preference. For instance, short videos are objectively easier to finish even though the user may not like the video. We term such feature as confounding feature , and video length is a confounding feature in video recommendation. If we fit a model on such interaction data, just as done by most data-driven recommender systems, the model will be biased to recommend short videos more, and deviate from user actual requirement. This work formulates and addresses the problem from the causal perspective. Assuming there are some factors affecting both the confounding feature and other item features, e.g., the video creator, we find the confounding feature opens a backdoor path behind user-item matching and introduces spurious correlation. To remove the effect of backdoor path, we propose a framework named Deconfounding Causal Recommendation (DCR) , which performs intervened inference with do-calculus . Nevertheless, evaluating do-calculus requires to sum over the prediction on all possible values of confounding feature, significantly increasing the time cost. To address the efficiency challenge, we further propose a mixture-of-experts (MoE) model architecture, modeling each value of confounding feature with a separate expert module. Through this way, we retain the model expressiveness with few additional costs. We demonstrate DCR on the backbone model of neural factorization machine (NFM) , showing that DCR leads to more accurate prediction of user preference with small inference time cost. We release our code at: https://github.com/zyang1580/DCR .

User Preference-Based Video Synopsis Using Person Appearance and Motion Descriptions.

During the last decade, surveillance cameras have spread quickly; their spread is predicted to increase rapidly in the following years. Therefore, browsing and analyzing these vast amounts of created surveillance videos effectively is vital in surveillance applications. Recently, a video synopsis approach was proposed to reduce the surveillance video duration by rearranging the objects to present them in a portion of time. However, performing a synopsis for all the persons in the video is not efficacious for crowded videos. Different clustering and user-defined query methods are introduced to generate the video synopsis according to general descriptions such as color, size, class, and motion. This work presents a user-defined query synopsis video based on motion descriptions and specific visual appearance features such as gender, age, carrying something, having a baby buggy, and upper and lower clothing color. The proposed method assists the camera monitor in retrieving people who meet certain appearance constraints and people who enter a predefined area or move in a specific direction to generate the video, including a suspected person with specific features. After retrieving the persons, a whale optimization algorithm is applied to arrange these persons reserving chronological order, reducing collisions, and assuring a short synopsis video. The evaluation of the proposed work for the retrieval process in terms of precision, recall, and F1 score ranges from 83% to 100%, while for the video synopsis process, the synopsis video length compared to the original video is decreased by 68% to 93.2%, and the interacting tube pairs are preserved in the synopsis video by 78.6% to 100%.

Do YouTube videos on microscopic varicocelectomy provide reliable information?

This study aimed to assess the quality of YouTube videos about microscopic varicocelectomy. On November 20, 2022, a YouTube search for "Microscopic Varicocelectomy" was conducted. Non-English videos uploaded by producers for commercial purposes that lacked audio and subtitles were excluded from the study. A total of 50 videos were evaluated using the Journal of the American Medical Association Benchmark Score and the Global Quality Score, both of which are recognized internationally. Additionally, the researcher developed the Microscopic Varicocelectomy Score to evaluate the videos' technical content. The upload source, video length, number of views, likes, dislikes, and video power indexes were evaluated. The Global Quality Score, Journal of the American Medical Association Benchmark Score, and Microscopic Varicocelectomy Score of the academically prepared videos were significantly higher than those of the physician-prepared videos (p<0.05). The Global Quality Score, Journal of the American Medical Association Benchmark Score, and Microscopic Varicocelectomy Score of uploaded videos with audio, audio, and subtitles were significantly higher than those with only subtitles (p<0.05). The video duration was positively correlated with Journal of the American Medical Association Benchmark Score, Global Quality Score, and Microscopic Varicocelectomy Score. The video power index had a strong positive correlation with the number of likes. Moreover, a strong positive correlation was observed, indicating that the Global Quality Score and Journal of the American Medical Association Benchmark Score increased as the Microscopic Varicocelectomy Score increased. YouTube videos regarding microscopic varicocelectomy were of notably low quality. If the video content created by specialist physicians and academic centers is more meticulously organized, more accurate data can be transmitted. Consequently, viewing video content may not be advised based on the available data.

Video selection and assessment for an app-based HIV prevention messaging intervention: formative research

Gay, bisexual, and other men who have sex with men (GBMSM) continue to be overrepresented in human immunodeficiency virus (HIV) infection in the United States. HIV prevention and care interventions that are tailored to an individual's serostatus have the potential to lower the rate of new infections among GBMSM. Mobile technology is a critical tool for disseminating targeted messaging and increasing uptake of basic prevention services including HIV testing, sexually transmitted infection (STI) testing, and pre-exposure prophylaxis (PrEP). Mobile Messaging for Men (M-Cubed) is a mobile health HIV prevention intervention designed to deliver video- and text-based prevention messages, provide STI and HIV information, and link GBMSM to prevention and healthcare resources. The current report describes an iterative process of identifying and selecting publicly available videos to be used as part of the M-Cubed intervention. We also conducted interviews with GBMSM to assess the acceptability, comprehension, and potential audience reach of the selected video messages. The selection of videos included balancing of specific criteria [e.g., accuracy of scientific information, video length, prevention domains: HIV/STI testing, antiretroviral therapy (ART), PrEP, engagement in care, and condom use] to ensure that they were intended for our GBMSM audiences: HIV-negative men who engage in condomless anal sex, HIV-negative men who do not engage in condomless anal sex, and men living with HIV. This formative study included in-person interviews with 26 GBMSM from three U.S. cities heavily impacted by the HIV epidemic-New York City, Detroit, and Atlanta. Following a qualitative content analysis, the study team identified five themes across the interviews: participant reactions to the video messages, message comprehension, PrEP concerns, targeting of video messaging, and prompted action. Study results informed a final selection of 12 video messages for inclusion in a randomized controlled trial of M-Cubed. Findings may serve as a guide for researchers who plan to develop HIV prevention interventions that utilize publicly available videos to promote behavioral change. Further, the findings presented here suggest the importance of developing videos with broad age and gender diversity for use in interventions such as M-Cubed, and in other health promotion settings.

Evaluation of YouTube Videos for Information and Education on Amblyopia

Background: YouTube is a popular social media platform accessed by people to obtain relevant health and disease-related information. The purpose of this study was to evaluate YouTube videos as a source of information on amblyopia. Material and Methods: In this prospective, cross-sectional study a YouTube search was conducted using three keywords, ‘Lazy eye’, ‘amblyopia’ and ‘Lazy eye treatment’ on 26th January, 2022. Video quality assessment was done using Modified DISCERN (mDISCERN), Global Quality Score and the Health on the Net Foundation Code of Conduct (HONcode) scale. Video content was analysed as a health professional and non-health professional, video length, release date, daily view count and Video Power Index. The relationship between the groups and video quality was evaluated. Results: Of the 300 initial videos investigated for the study, 219 videos met the inclusion criteria and were subjected to statistical analysis. Nearly 50% of videos contained content related to medical education. More than half of the videos analysed (130; 59.36%) were uploaded by healthcare professionals (HCPs). The mDISCERN mean ± SD score for the videos was 2.65 ± 1.24, for the Journal of the American Medical Association (JAMA) scoring was 2.37 ± 1.02 and for the HONcode was 3.72 ± 1.75. All scoring systems were better for HCPs as compared with non-healthcare professionals (NHCPs). Conclusion: A wide variety of information about amblyopia is available on YouTube™. Videos uploaded by NHCP had suboptimal flow as well as information of limited use to patients.

A Study on the Success of Short Videos Themed on Beijing Cuisines and Its Influence on the City’s Image

With the boom of the short video industry in recent years, cities with tremendous internet influences have witnessed rapid growth attributable to the rise of short video platforms where cuisinethemed short videos have become a new channel for the communication of a city’s image. On one of the platforms, TikTok, there exists a huge gap in terms of communication performance among cuisine-themed short videos of different kinds. Taking content analysis as the tool, this paper is engaged with the quantitative analysis of the content characteristics, food types, city image, video length and language characteristics of the short videos themed on Beijing cuisines that go viral on the Internet with the coded information extracted from the top 30 related short videos with most likes published on TikTok, so as to investigate their commonalities and shared features. An in-depth analysis is provided as the result with specific cases taken into account to propose for the production and communication of similar videos and to provide certain references for the construction and communication of the image of corresponding cities.

Evaluation of Youtube content regarding Varenicline and smoking cessation

Introduction. The use of varenicline, an effective way to quit smoking, has become a subject of discussion in the mainstream media, social media, and the internet due to the growing number of people trying to quit smoking. YouTube videos serve a significant purpose in the drive towards smoking cessation with the aid of the drug mentioned above. This study aimed to evaluate the content of videos related to varenicline on YouTube.&#x0D; Material and methods. Six different research terms were created for a search on YouTube. Two reviewers evaluated the videos for quality, reliability, and usefulness. After detecting useful and misleading videos, the factors affecting them as video parameters in these groups were compared.&#x0D; Results. Of the videos evaluated, 78% were classified as useful, while the remaining 22% were misleading. Video length, number of likes and the likes ratio showed no significant difference between these two groups (p=0.264; p=0.075; p=0.798). The DISCERN (DS) and Global Quality Scale (GQS) scores of misleading videos were significantly lower (p=0.001). The DS and GQS scores of the useful videos were 2.58±1.11 and 2.67±1.05, respectively.&#x0D; Conclusions. Misleading videos had a higher number of views and comments compared to useful videos. It was observed that independent YouTube users and media sources are producing more misleading videos. It is very concerning that cigarette quitters do not develop awareness in decision making about the misleading information from media and independent users. In contrast, health pages, physicians, and patient experiences can guide those trying to stop smoking.

Visualizing the Passage of Time with Video Temporal Pyramids.

What can we learn about a scene by watching it for months or years? A video recorded over a long timespan will depict interesting phenomena at multiple timescales, but identifying and viewing them presents a challenge. The video is too long to watch in full, and some things are too slow to experience in real-time, such as glacial retreat or the gradual shift from summer to fall. Timelapse videography is a common approach to summarizing long videos and visualizing slow timescales. However, a timelapse is limited to a single chosen temporal frequency, and often appears flickery due to aliasing. Also, the length of the timelapse video is directly tied to its temporal resolution, which necessitates tradeoffs between those two facets. In this paper, we propose Video Temporal Pyramids, a technique that addresses these limitations and expands the possibilities for visualizing the passage of time. Inspired by spatial image pyramids from computer vision, we developed an algorithm that builds video pyramids in the temporal domain. Each level of a Video Temporal Pyramid visualizes a different timescale; for instance, videos from the monthly timescale are usually good for visualizing seasonal changes, while videos from the one-minute timescale are best for visualizing sunrise or the movement of clouds across the sky. To help explore the different pyramid levels, we also propose a Video Spectrogram to visualize the amount of activity across the entire pyramid, providing a holistic overview of the scene dynamics and the ability to explore and discover phenomena across time and timescales. To demonstrate our approach, we have built Video Temporal Pyramids from ten outdoor scenes, each containing months or years of data. We compare Video Temporal Pyramid layers to naive timelapse and find that our pyramids enable alias-free viewing of longer-term changes. We also demonstrate that the Video Spectrogram facilitates exploration and discovery of phenomena across pyramid levels, by enabling both overview and detail-focused perspectives.

Creating and Collecting e-Learning Event Logs to Analyze Learning Behavior of Students through Process Mining

Many traditional educational management models are being switched or shifted into online platforms; thus, assessing behavioral aspects of learners is essential to improving the quality of online teaching and learning processes. Currently, a problem in managing online teaching of courses is that instructors do not have the appropriate tools and techniques to be fully aware of students’ behavioral patterns in a data-driven and process-aware approach. This study is divided into three main parts. In the first part, a dataset of online students is transformed and preprocessed. In the second part, the Fuzzy Miner algorithm supported by Fluxicon Disco is applied to the dataset to understand the learning process of the students in terms of the duration and length of the tutorial videos watched online (i.e., fully watched, partially watched, paused, and resumed intervals) and in terms of the frequencies of all activities. In the third part, a comparison between behavioral patterns of high-performance group of students versus their low-performance counterparts attending the same course was conducted, and we used the Dotted Chart Analysis technique supported by ProM to conduct and make the comparisons. The results of the study showed significant differences between the two groups in terms of the duration spent on the tutorial videos and in terms of the sequence and order of the activities performed and executed. The findings of the research can be used by instructors, administrators, and educational managers to improve the course curriculum management process or to boost effective coaching and teaching styles, leading to the optimization of students’ learning process by increasing educators’ awareness about students’ weaknesses and strengths.

An Automated Framework for Summarizing YouTube Videos Using NLP

In recent times, YouTube has increasingly become the preferred platform to consume educational content. In order to learn complex and intricate concepts, a student must sit through many of hours of YouTube videos where an average video length is about 20 minutes. To see if the content of a given YouTube video is relevant to what the user is looking for, YouTube Video Summarizer was conceptualized. YouTube Video Summarizer is a Chrome Extension tool which can be used to quickly generate the summary of a YouTube video using the English-language transcript of the video Automation. This allows for a seamless generation of a synopsis without spending hours watching the content to determine its relevancy.

Video Length Preferences for Engineering Students: Case Study of a Flipped Software Course

Video Length Preferences for Engineering Students: Case Study of a Flipped Software Course

Evaluating a Photogrammetry-Based Video for Undergraduate Anatomy Education.

Modern anatomy education has benefitted from the development of a wide range of digital 3D resources in the past decades, but the impact of the COVID-19 pandemic has sparked an additional demand for high-quality online learning resources. Photogrammetry provides a low-cost technique for departments to create their own photo-realistic 3D models of cadaveric specimens. However, to ensure accessibility, the design of the resulting learning resources should be carefully considered. We aimed to address this by creating a video based on a photogrammetry model of a cadaveric human lung. Students evaluated three different versions of this video in a Likert-type online survey. Most responding students found this type of video useful for their learning and helpful for the identification of anatomical structures in real cadaveric specimens. Respondents also showed a preference for specific design features such as a short video length, white text on black background, and the presence of captions. The positive student feedback is promising for the future development of photogrammetry-based videos for anatomy education and this study has provided pilot data to improve the accessibility of such videos.

Exploring the Significance of Social Media Reels and Short Videos to Promote Business Online

Reels and Shorts are game-changing features that allow users to upload short video clips and video graphics backed up by AI (Artificial Intelligence) and VR (Virtual reality) filters with a video length of 15 seconds to 90 seconds. Although the features are adopted by both influencers and regular users, brands are not thoroughly applying these features in raising awareness and engagement due to the limited research on the field. The study focuses on the significance of social media reels and shorts in brand promotion and boosting growth creating a competitive edge. The study has implied the qualitative case study approach for determining the effectiveness of reels and shorts in the corporate realm. The data was identified and collected based on “grounded theory” where the data was collected from observing and studying the use of reels and short of Netflix and analyzing the significance of the study at hand. By analyzing the patterns of Netflix’s TikTok and Meta accounts posting, this article identifies that brands can boost both engagement and conversion by the use of reels and shorts as promotional tools. The research also outlines that brands can boost their promotion by two-fold co-existing their brand presence in both reels and shorts. Furthermore, brands should also use the platforms, tailoring the targeted demographics. As Instagram reels get around 22% engagement rate and TikTok shorts get around 18% of the engagement rate, brands should tailor their millennial segment through the Instagram Reels and iGen or the Generation Z segment through TikTok shorts.

The Assessment of The Quality and Content of YouTube Videos Concerning Dental Treatments Performed Under General Anesthesia

Objective: This study evaluates the content and quality of YouTube videos on dental procedures under general anesthesia, a crucial topic for patients with disabilities or complex medical conditions. Materials and Methods: A cross-sectional analysis was conducted on the first 200 videos yielded by a "general anesthesia in dentistry" search on YouTube. Videos were evaluated based on 13 criteria, and Video Information and Quality Index (VIQI) was used for overall quality assessment. Results: The study analyzed 180 videos, with 115 meeting the selection criteria. These videos showed good reliability in content and Video Information and Quality Index (VIQI) scores, and were mostly uploaded by healthcare professionals from the U.S., India. Average video length was about 7 minutes. They mainly discussed reasons for choosing general anesthesia. Majority of videos (79.1%) were uploaded by healthcare professionals. Among the 115 videos, 20% were full-content, while 83.5% and 16.5% were classified as high-content and low-content, respectively. High-content videos were longer and had higher VIQI scores. Conclusion: Majority of videos on the topic were created by professionals. The reasons for choosing general anesthesia were the most discussed topic. Despite study limitations, these YouTube videos serve as effective supplementary material for both healthcare professionals and laypersons.

Covering Covid-19 Pandemic on Short Video Platforms in China: A Content Analysis of Douyin Accounts of People's Daily and China Daily

As a new form of social media, short videos have been deeply seated in Chinese life. In order to expand their influence, China's mainstream media also opened accounts on short video platforms, especially during the Covid-19 pandemic. They use short video platforms to report news, which play a key role in guiding public opinion and stabilising people's hearts. Based on the pandemic coverage of two of China's representative media, People's Daily and China Daily on Douyin platform, content analysis method is used to analyse the reporting frequency, video length, reporting content, reporting tendency, and user engagement, and compare the similarities and differences between the two media in the above five aspects. It was found that in terms of reporting frequency, the development trend of the two media is different, but they post roughly the same number of videos per day on average, and the number of videos released during the pandemic is higher than usual. In terms of video length, most of the videos of the two media are produced in a duration of one minute. China Daily produced more long videos than People's Daily. In terms of the reporting content, the two media are involved in 11 constructed categories, but the top four categories are different because of the different position. About the reporting tendency, People's Daily has strong subjective emotion, and China Daily reported more neutral news. As for user engagement, People's Daily did better in likes, comments and shares, although both posted more likes, comments and shares than usual during the pandemic. Keywords: Douyin, short video coverage, People's Daily, China Daily, COVID-19.

Quality assessment and comparison of two- and three-dimensional YouTube videos as additional educational tools for cataract surgery: "METAVERSE".

To compare the content and quality of 3D YouTube videos with 2Ds as additional educational tools for phacoemulsification surgery. This cross-sectional study included 2D and side-by-side 3D phacoemulsification videos found on YouTube by searching for "phacoemulsification," "phaco," and "cataract." Data was collected on video length (min), time since upload (days), number of views, likes, dislikes, cataract type, chop technique, and visualization system. Video popularity and interaction were calculated by video power index, interaction index, and viewing rate. Two senior ophthalmologists (SOs) and two ophthalmology residents (ORs) evaluated videos using the DISCERN, global quality score (GQS), and usefulness scoring systems. Inter-rater reliability was assessed using intra-class correlation coefficient (ICC). A total of 457 videos were screened, with 85 in 2D and 85 in 3D deemed appropriate for analysis. 2D videos received significantly more views, likes, dislikes, days since upload, video power index, and viewing rate than 3Ds (p < 0.001). Video length and interaction index in 3D videos were significantly greater than in 2Ds (p < 0.001). All video scoring systems revealed that 3D videos outperformed 2Ds in ORs (p < 0.05). ICC confirmed good inter-rater reliability agreement even at the lowest value (SOs: 0.924, 95% CI, 0.910-0.937; ORs: 0.892, 95% CI, 0.878-0.908). 3D YouTube videos as additional educational tools could help not only SOs but also ORs fully comprehend the breadth and depth of ocular surgeries, particularly phacoemulsification, by improving depth perception. They can also be used to review previously learned procedures, observe new ones, and recall old ones.

Training nurse simulation educators at scale to improve maternal and newborn health: a case study from Bihar, India

BackgroundSimulation has been shown to improve clinical and behavioral skills of birth attendants in low-resource settings at a low scale. Populous, low-resource settings such as Bihar, India, require large cadres of simulation educators to improve maternal and newborn health. It’s unknown if simulation facilitation skills can be adopted through a train of trainers’ cascade. To fill this gap, we designed a study to evaluate the simulation and debrief knowledge, attitudes and skills of a third generation of 701 simulation educators in Bihar, India. In addition, we assessed the physical infrastructure where simulation takes place in 40 primary healthcare facilities in Bihar, India.MethodsWe performed a 1 year before–after intervention study to assess the simulation facilitation strengths and weaknesses of a cadre of 701 nurses in Bihar, India. The data included 701 pre-post knowledge and attitudes self-assessments; videos of simulations and associated debriefs conducted by 701 providers at 40 primary healthcare centers.ResultsWe observed a statistically significant difference in knowledge and attitude scores before and after the 4-day PRONTO simulation educator training. The average number of participants in a simulation video was 5 participants (range 3-8). The average length of simulation videos was 10:21 minutes. The simulation educators under study, covered behavioral in 90% of debriefs and cognitive objectives were discussed in all debriefs.ConclusionThis is the first study assessing the simulation and debrief facilitation knowledge and skills of a cadre of 701 nurses in a low-resource setting. Simulation was implemented by local nurses at 353 primary healthcare centers in Bihar, India. Primary healthcare centers have the physical infrastructure to conduct simulation training. Some simulation skills such as communication via whiteboard were widely adopted. Advanced skills such as eliciting constructive feedback without judgment require practice.

Evaluation of the reliability, utility, and quality of the lid loading videos on YouTube.

It is aimed to determine the utility, reliability and quality of the lid loading videos on YouTube, a video sharing platform. A YouTube searches were made with the keywords 'Eyelid Loading,' 'Gold Weight Implantation,' 'Lid Loading for Lagophthalmos' (without user login, cleared search history, in incognito tab). A total of 75 videos were recorded. Length of videos (seconds), number of views, uploaded source (doctor/health institution/medical channel), number of subscribers, number of likes, time since uploading (days), video content (surgical/theoretical information), type of narration (verbal narration/subtitle) were recorded. DISCERN, The Journal of the American Medical Association (JAMA), and Global Quality Scores of the videos were evaluated and recorded by two experienced oculoplastic surgeons (KSC, HT). After the exclusion criteria, the remaining 46 videos were included in the study. The mean DISCERN score was 25.17 ± 6.88 (very poor quality), the JAMA score was 0.79 ± 0.63 (very poor quality), and GQS was 2.84 ± 1.03 (medium quality). Thirty videos (65.2%) had verbal narration, and 16 videos (34.8%) had subtitled narration. The DISCERN score and GQS were significantly higher in the videos with verbal narration compared to the narration with subtitles (p < 0.05). All three scores were positively correlated with each other. There was also a positive correlation between video length, number of subscribers, and DISCERN score. The videos about lid loading on YouTube are of poor reliability, accuracy, and educational quality. The duration of the video and the type of narration can be kept in the foreground when choosing the video. Experts must review the content that is uploaded to websites like YouTube.

Analysis of YouTube videos as a source of information for reliability and effectiveness of cannabidiol oil in treatment of epilepsy

ObjectiveCannabidiol (CBD) oil has been used for the treatment of refractory epilepsy for a long time. In this study, we aimed to investigate the quality and reliability of YouTube videos pertaining to the use of CBD oil in the treatment of epilepsy. MethodsA total of 100 videos were reviewed. Evaluation of the videos were performed by two experienced neurologists at the same time, but in different settings in order to prevent bias. Videos’ image type, video content, video length, upload date, daily view count, comment and like counts, qualification of uploaders, DISCERN, and GQS scores were recorded. ResultsThe videos were found to be uploaded by physicians (46 %), health channels (33 %), TV channels (7 %), patients (2 %), and other persons (12 %). The mean DISCERN score was found as 3.71 ± 1.17 and the mean GQS score was found as 3.21 ± 1.05 in all videos. According to the DISCERN scale, the videos uploaded by doctors were scored as 3.82 ± 1.02 and the videos uploaded by non-doctors as 3.07 ± 1.12 (p < 0.001). According to the GQS scale, the videos uploaded by doctors were scored as 3.51 ± 1.02 and the videos uploaded by non-doctors as 3.01 ± 1.17 (p < 0.001). ConclusionThirty-two (32%) videos were poor, 43 (43%) videos were moderate, and only 25 (25%) videos were good in terms of quality and reliability. YouTube videos related to health issues need to be audited strictly before they can become publicly accessible.

Comparing lengths and inclusion of information in storytelling videos: Implications for Hepatitis B education.

This study examined whether adding disease-specific facts into storytelling videos and altering video length would lead to differences in overall ratings of the video and the storyteller, as well as hepatitis B prevention beliefs, among Asian American and Pacific Islander adults. A sample of Asian American and Pacific Islander adults (N = 409) completed an online survey. Each participant was randomly assigned to 1 of 4 conditions that varied in video length and use of additional hepatitis B facts. Linear regressions were used to examine differences in outcomes (i.e., video rating, speaker rating, perceived effectiveness, hepatitis B prevention beliefs) by conditions. Condition 2, which added facts to the original full-length video, was significantly related to higher speaker ratings (i.e., the storyteller's rating) compared to Condition 1, the original full-length video with no added facts, p = 0.016. Condition 3, which added facts to the shortened video, was significantly related to lower overall video ratings (i.e., how much participants liked the videos overall) compared to Condition 1, p = 0.001. There were no significant differences in higher positive hepatitis B prevention beliefs across conditions. Results suggest that adding disease-specific facts to storytelling for patient education may improve initial perceptions of storytelling videos; however, more research is needed to examine long-term effects. Aspects of storytelling videos such as length and additional information have been rarely explored in storytelling research. This study provides evidence that exploring these aspects is informative to future storytelling campaigns and disease-specific prevention.