Effect of Visual Design on the Evaluation of Technology- vs. Design-Based Novel Interactive Products

2020 ◽  
Vol 32 (3) ◽  
pp. 296-315
Author(s):  
Eleanor Eytam
Keyword(s):  
Ease Of Use ◽  
Visual Design ◽  
Product Evaluations ◽  
Significant Difference ◽  
Reported Study ◽  
Interactive Product ◽  
Past Experiences ◽  
Design Simplicity ◽  
Innovation Type ◽  
Novel Products

Abstract Novel product evaluations are challenging in that they occur under pre-use conditions in which users cannot rely on their past experiences with the product to determine its quality. The reported study explores the effects of innovation type and design simplicity level on novel interactive product evaluations. The results show that the type of innovation interacts with the visual simplicity level and affects one’s judgment about a product’s instrumental attributes, namely, its ease of use and functionality. While technology-based novel products are judged to be more innovative and more creative compared to design-based novel products when the designs are relatively simple, this trend shifts for complex designs where there is no significant difference between judgments of the two types of products. Finally, while innovativeness is a salient predictor for preference variance regardless of innovation type and design visual simplicity level, creativity is a predictor for preference variance of design-based innovation, when the design is relatively simple.

scholarly journals An associational study: preschool teachers’ acceptance and self-efficacy towards Educational Robotics in a pre-service teacher training program

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Despoina Schina ◽  
Cristina Valls-Bautista ◽  
Anna Borrull-Riera ◽  
Mireia Usart ◽  
Vanessa Esteve-González
Keyword(s):  
Teacher Training ◽  
Training Program ◽  
Self Efficacy ◽  
Group Intervention ◽  
Preschool Teachers ◽  
Ease Of Use ◽  
Educational Robotics ◽  
Perceived Ease Of Use ◽  
Significant Difference ◽  
The Impact

Abstract Purpose This study explores pre-service preschool teachers’ acceptance and self-efficacy towards Educational Robotics (ER) during a university course, and also examines their perceptions of the course. Methodology This is a one-group intervention study with an associational research design that includes both quantitative and qualitative research methods: two pre-questionnaires and two post-questionnaires on pre-service teachers’ acceptance and self-efficacy towards ER, and participants’ training journals. Findings The results show that pre-service teachers’ acceptance and self-efficacy towards ER improved after they completed the ER teacher training course. There was a significant difference between the start and the end of the ER training in the pre-service teachers’ acceptance of ER in the areas of perceived ease of use, enjoyment and attitudes, and in their self-efficacy. The findings based on the training journals show that participants positively evaluated the course. The participants also provided suggestions for improving it, such as additional training sessions, resources and time for experimentation. Value Our study reveals the impact of an ER training program and showcases the importance of integrating ER in pre-service teachers’ education.

The Effects of Receiver Placement on Probe Microphone, Performance, and Subjective Measures with Open Canal Hearing Instruments

2010 ◽  
Vol 21 (04) ◽  
pp. 249-266 ◽  
Author(s):  
Lynzee N. Alworth ◽  
Patrick N. Plyler ◽  
Monika Bertges Reber ◽  
Patti M. Johnstone
Keyword(s):  
Repeated Measures ◽  
Hearing Aid ◽  
Clinical Importance ◽  
Ease Of Use ◽  
Subjective Measures ◽  
Repeated Measures Design ◽  
Hearing Instruments ◽  
Data Collection And Analysis ◽  
Significant Difference ◽  
Occlusion Effect

Background: Open canal hearing instruments differ in method of sound delivery to the ear canal, distance between the microphone and the receiver, and physical size of the devices. Moreover, RITA (receiver in the aid) and RITE (receiver in the ear) hearing instruments may also differ in terms of retention and comfort as well as ease of use and care for certain individuals. What remains unclear, however, is if any or all of the abovementioned factors contribute to hearing aid outcome. Purpose: To determine the effect of receiver location on performance and/or preference of listeners using open canal hearing instruments. Research Design: An experimental study in which subjects were exposed to a repeated measures design. Study Sample: Twenty-five adult listeners with mild sloping to moderately severe sensorineural hearing loss (mean age 67 yr). Data Collection and Analysis: Participants completed two six-week trial periods for each device type. Probe microphone, objective, and subjective measures (quiet, noise) were conducted unaided and aided at the end of each trial period. Results: Occlusion effect results were not significantly different between the RITA and RITE instruments; however, frequency range was extended in the RITE instruments, resulting in significantly greater maximum gain for the RITE instruments than the RITA instruments at 4000 and 6000 Hz. Objective performance in quiet or in noise was unaffected by receiver location. Subjective measures revealed significantly greater satisfaction ratings for the RITE than for the RITA instruments. Similarly, preference in quiet and overall preference were significantly greater for the RITE than for the RITA instruments. Conclusions: Although no occlusion differences were noted between instruments, the RITE did demonstrate a significant difference in reserve gain before feedback at 4000 and 6000 Hz. Objectively; no positive benefit was noted between unaided and aided conditions on speech recognition tests. These results suggest that such testing may not be sensitive enough to determine aided benefit with open canal instruments. However, the subjective measures (Abbreviated Profile of Hearing Aid Benefit [APHAB] and subjective ratings) did indicate aided benefit for both instruments when compared to unaided. This further suggests the clinical importance of subjective measures as a way to measure aided benefit of open-fit devices.

scholarly journals Determining Antecedent of Re-Purchase Intention: The Role of Perceived Value and Consumer’s Interest Factor

2018 ◽  
Vol 11 (4) ◽  
pp. 17
Author(s):  
Yesim Can ◽  
Oya Erdil
Keyword(s):  
Brand Loyalty ◽  
Purchase Intention ◽  
Perceived Value ◽  
Ease Of Use ◽  
Strategic Marketing ◽  
Visual Design ◽  
Design And Technology ◽  
Repurchase Intention ◽  
System Quality ◽  
Perceived Ease Of Use

With the widespread use of smartphones, strategic marketing of smartphones has become the focus of related brands. Although creating brand loyalty is an important factor of global strategic marketing and re-purchase intention, little research investigated the antecedent of smartphone's brand loyalty and repurchase intention. The purposes of this study are to investigate what are the antecedent brand loyalty and re-purchase intention in smartphone marketing. In the light of the literature and for this purpose; the effects of perceived value factor (perceived ease of use, perceived irreplaceability), utilitarian factor (system quality), hedonic factor (visual design), and consumer’s interest factor (technology consciousness) on brand loyalty and repurchase intention were investigated in an integrated model. The results of the analysis show that smartphone's re-purchase intention is largely determined by brand loyalty, perceived ease of use, perceived irreplaceability, system quality, visual design, and technology consciousness. Moreover, analysis results demonstrate that perceived irreplaceability, system quality, and visual design affect brand loyalty.

scholarly journals Evaluation of the color stability and surface roughness of dual-cure, bulk-fill composites

2021 ◽  
Vol 11 (Suppl. 1) ◽  
pp. 266-273
Author(s):  
Zehra Şivgan Güner ◽  
Behiye Bolgül ◽  
Tacettin İnandı
Keyword(s):  
Surface Roughness ◽  
Color Stability ◽  
Pediatric Dentistry ◽  
Ease Of Use ◽  
Composite Resins ◽  
Distilled Water ◽  
Significant Difference ◽  
Cherry Juice ◽  
Experimental Group ◽  
Composite Samples

Aim: In recent years, tooth-colored, dual-cure, bulk-fill composite resins, which have attracted attention for their ease of use, constitute one of the latest developments in pediatric dentistry applications. This study aimed to evaluate the color stability and surface roughness properties of three different dual-cure, bulk-fill materials and one light-cure, bulk-fill composite material used in pediatric dentistry. Methodology: In this study, three different dual-cure, bulk-fill composites (Fill-Up, HyperFIL, Cention-N) and one light-polymerized bulk-fill composite (Reveal HD) were used. A total of 70 samples were obtained for surface roughness testing. The surface roughness testing was performed with a Hysitron TI 950 Triboindenter device. A total of 105 samples were obtained for the evaluation of color stability. Cherry juice, iced tea, and distilled water were used as solutions. Initial and final color measurements were made using a spectrophotometer. The color differences between measurements were recorded according to the CIEDE 2000 system. Results: The least surface roughness among the composite groups was observed in the light polymerized Cention-N composite samples in the experimental group. In the Fill-Up and Cention-N composite groups in the experimental group, the surface roughness of the samples left to self-polymerization and the samples polymerized with light showed a statistically significant difference (p < 0.05). Among the composite groups, the highest amount of coloring was observed in the Fill-Up composite samples, which were left to self-polymerization and kept in cherry juice in the experimental group. The least coloration among the composite groups was observed in the Cention-N composite samples polymerized with light and kept in distilled water. Conclusion: Based on this information, a decrease in surface roughness and an increase in color stability can be expected due to self-polymerization and the light polymerization of dual-cured, bulk-fill composites.   How to cite this article: Şivgan Güner Z, Bolgül B, İnandı T. Evaluation of the color stability and surface roughness of dual-cure, bulk-fill composites. Int Dent Res 2021;11(Suppl.1):266-273. https://doi.org/10.5577/intdentres.2021.vol11.suppl.39   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Evaluation of the efficacy of two methods for direct extraction of DNA from Mycobacterium tuberculosis sputum

2018 ◽  
Vol 12 (12) ◽  
pp. 1067-1072
Author(s):  
Victor Ndhlovu ◽  
Wilson Mandala ◽  
Derek Sloan ◽  
Mercy Kamdolozi ◽  
Maxine Caws ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Single Molecule ◽  
Disease Transmission ◽  
Extraction Efficiency ◽  
Ease Of Use ◽  
Clinical Samples ◽  
Direct Extraction ◽  
Significant Difference ◽  
Ctab Method ◽  
Dna Purity

Introduction: Whole genome sequencing (WGS) has shown superiority over other bacterial typing methods and can be used to monitor disease transmission. The long culture period hinders use of WGS as a diagnostic tool for TB. The ideal situation would be to efficiently sequence directly from clinical specimens such as sputum. Attempts to sequence directly from Mtb clinical samples have achieved very low coverage (less than 0.7X). We compared DNA extraction methods for direct extraction from Mycobacterium tuberculosis positive sputum and assessed their suitability for Single Molecule Real Time sequencing. Methodology: We evaluated the extraction efficiency of the PrimeXtract kit and an in-house CTAB method by extracting DNA from Mtb sputum. We evaluated the methods on these parameters: ease of use, efficiency (quantity and purity) and the cost per extraction. Results: The PrimeXtract kit was able to isolate 5.93 µg/mL ± 0.94, (Mean ± SEM) concentration of DNA and a yield of 0.2975 µg ± 0.04723, (Mean ± SEM). Comparatively, the CTAB method isolated 1.88 µg/mL ± 0.38 DNA and a yield of 0.09 µg ± 0.02. Both concentration and yield from the kit were significantly (p = 0.0002) higher than those from CTAB. The PrimeXtract kit had a DNA purity ratio of 1.69 ± 0.09 compared to the CTAB’s 1.73 ± 0.14 and this difference was not statistically different. Conclusion: PrimeXtract kit has a superior extraction efficiency than the CTAB method on Mtb sputum in terms of DNA yield although no significant difference by DNA purity was seen.

scholarly journals Age Is Not a Barrier: Older Adults With Cancer Derive Similar Benefit in a Randomized Controlled Trial of a Remote Symptom Monitoring Intervention Compared With Younger Adults

2020 ◽  
Vol 27 (1) ◽  
pp. 107327482096887
Author(s):  
Lorinda A. Coombs ◽  
Lee Ellington ◽  
Angela Fagerlin ◽  
Kathi Mooney
Keyword(s):  
Older Adults ◽  
Interactive Voice Response ◽  
Controlled Trial ◽  
Ease Of Use ◽  
Younger Adults ◽  
Symptom Monitoring ◽  
Adult Participants ◽  
Perceived Benefit ◽  
Significant Difference ◽  
Technological Tool

This study investigated a remote symptom monitoring intervention to examine if older participants with cancer received a similar magnitude of benefit compared with younger adults with cancer. We analyzed a longitudinal symptom monitoring intervention for 358 participants beginning a new course of chemotherapy treatment in community and academic oncology practices. The study design was a randomized control trial; participants were randomized to the intervention or usual care, the intervention was delivered during daily automated coaching. Older adults with moderate and severe symptoms derived similar benefit as those adults younger than 60 years of age, adherence to the study protocol which involved daily calls was high. There was no significant difference between the 2 age categories; on average, older adult participants made 88% of expected daily calls and younger adult participants made 90% of expected daily calls. Our results challenge the perception that older adults are unwilling or unable to use a technological tool such as interactive voice response and suggest that patient utilization may be guided by other factors, such as ease of use and perceived benefit from the intervention.

scholarly journals Store Brand Purchase in the Italian Market

2018 ◽  
Vol 13 (7) ◽  
pp. 126
Author(s):  
Guido Cristini ◽  
Cristina Zerbini
Keyword(s):  
Brand Management ◽  
Store Brand ◽  
Product Evaluations ◽  
Telephone Interviews ◽  
Italian Market ◽  
Significant Difference ◽  
Managerial Implications ◽  
The Difference ◽  
Structured Questionnaire

The paper analyzes the degree of importance of Store Brand purchase determinants for the consumer. In particular, the research focuses on two specific shopper segments (hypermarket shopper and supermarket shopper) in order to evaluate the existence of any significant differences between their product evaluations. Telephone interviews, based on a structured questionnaire, were conducted with a sample of consumers responsible for family purchases and buyers of Store Brand products. For the majority of the purchasing determinants investigated, the results show a significant difference in opinion between those buying Store Brand products in hypermarkets and those in supermarkets. The difference found between shopper profiles has significant managerial implications that could be useful for determining Store Brand management policies. This paper also contributes to the academic debate on the role of Store Brand in the retail market.

scholarly journals Factors Influencing Employees’ Intention to Use Cloud Computing

2017 ◽  
Vol 8 (2) ◽  
pp. 47 ◽  
Author(s):  
Ali Tarhini ◽  
Ra’ed Masa’deh ◽  
Ali Al-Badi ◽  
Majdolen Almajali ◽  
Sufian Hussien Alrabayaah
Keyword(s):  
Cloud Computing ◽  
Behavioral Intention ◽  
Ease Of Use ◽  
Perceived Usefulness ◽  
Management Support ◽  
Perceived Ease Of Use ◽  
Top Management Support ◽  
Significant Difference ◽  
Job Opportunity ◽  
The Impact

This paper aims to investigate the effects of perceived ease of use, perceived usefulness, self-efficacy, trust, job opportunity, top management support, competitive pressure, and regulatory support on employees’ behavioral intention to use cloud computing. Data was collected by means of self-administrated questionnaire containing 25 items from 205 employees’ working in three, four, and five star hotels. Multiple regression analysis was conducted to test the research hypotheses. Results of the current study revealed that there are significant impacts of four independent variables (i.e. job opportunity, top management support, competitive pressure, and regulatory support) on behavioral intention (BI) to use cloud computing; whereas four independent variables (i.e. perceived ease of use, perceived usefulness, self-efficacy, and trust) have no significant impact on BI. The results of T-test also showed that there is a significant difference in the impact of BI to use cloud computing in favor of gender. On the other hand, the results of ANOVA’s test showed that there is no significant difference in the impact of BI that can be attributed to age, educational level, and personal income; whereas a significant difference found in favor of work position and hotel’s classification. In light of these findings, implications to both theory and practice are discussed.

scholarly journals U.S. Army Combat Medic eFAST Performance with a Novel Versus Conventional Transducers: A Randomized, Crossover Trial

2020 ◽  
Vol 185 (Supplement_1) ◽  
pp. 19-24 ◽  
Author(s):  
Brian J Ahern ◽  
Jonathan D Monti ◽  
Jason F Naylor ◽  
Aaron J Cronin ◽  
Michael D Perreault
Keyword(s):  
Diagnostic Accuracy ◽  
Crossover Trial ◽  
Ease Of Use ◽  
Technical Adequacy ◽  
Brief Training ◽  
Randomized Crossover Trial ◽  
Significant Difference ◽  
Combat Medics ◽  
Life Threatening ◽  
Conventional Ultrasound

ABSTRACT Background Point-of-injury extended focused assessment with sonography in trauma (eFAST) may identify life-threatening torso hemorrhage and expedite casualty evacuation. The purpose of this study was to compare combat medic eFAST performance between the novel and conventional ultrasound (US) transducers. Methods We conducted a randomized crossover trial. Medic participants, previously naïve to US, were randomized to the type of transducer first utilized. The primary outcome was eFAST completion time in seconds. Secondary outcomes included diagnostic accuracy, technical adequacy, and transducer ease-of-use rating. Results Forty medics performed 160 eFASTs. We found a statistically significant difference in eFAST completion times in favor of conventional transducers (304 vs. 358 s; P = 0.03). There was no statistically significant difference between the conventional and novel transducers in terms of diagnostic accuracy (97.7% vs. 96.0%; P = 0.25) and technical adequacy (65% vs. 72.5%; P = 0.11). Median transducer ease-of-use rating (Likert 1–5 scale) was statistically significant in favor of the conventional transducers (5 vs. 4; P = &lt; 0.001). Conclusions Extended focused assessment with sonography in trauma exam times was faster with the conventional transducers. Combat medics performed diagnostically accurate eFASTs with both transducer types in a simulated aid station setting after a brief training intervention. Conventional transducers were rated higher for ease-of-use.

Assessment of Groin Application of Junctional Tourniquets in a Manikin Model

2016 ◽  
Vol 31 (4) ◽  
pp. 358-363 ◽  
Author(s):  
John F. Kragh ◽  
Matthew P. Lunati ◽  
Chetan U. Kharod ◽  
Cord W. Cunningham ◽  
Jeffrey A. Bailey ◽  
...  
Keyword(s):  
Blood Loss ◽  
Blood Volume ◽  
Mixed Model ◽  
Pairwise Comparison ◽  
Ease Of Use ◽  
User Preference ◽  
Publication Type ◽  
Hemorrhage Control ◽  
Total Blood ◽  
Significant Difference

AbstractIntroductionTo aid in preparation of military medic trainers for a possible new curriculum in teaching junctional tourniquet use, the investigators studied the time to control hemorrhage and blood volume lost in order to provide evidence for ease of use.HypothesisModels of junctional tourniquet could perform differentially by blood loss, time to hemostasis, and user preference.MethodsIn a laboratory experiment, 30 users controlled simulated hemorrhage from a manikin (Combat Ready Clamp [CRoC] Trainer) with three iterations each of three junctional tourniquets. There were 270 tests which included hemorrhage control (yes/no), time to hemostasis, and blood volume lost. Users also subjectively ranked tourniquet performance. Models included CRoC, Junctional Emergency Treatment Tool (JETT), and SAM Junctional Tourniquet (SJT). Time to hemostasis and total blood loss were log-transformed and analyzed using a mixed model analysis of variance (ANOVA) with the users represented as random effects and the tourniquet model used as the treatment effect. Preference scores were analyzed with ANOVA, and Tukey’s honest significant difference test was used for all post-hoc pairwise comparisons.ResultsAll tourniquet uses were 100% effective for hemorrhage control. For blood loss, CRoC and SJT performed best with least blood loss and were significantly better than JETT; in pairwise comparison, CRoC-JETT (P < .0001) and SJT-JETT (P = .0085) were statistically significant in their mean difference, while CRoC-SJT (P = .35) was not. For time to hemostasis in pairwise comparison, the CRoC had a significantly shorter time compared to JETT and SJT (P < .0001, both comparisons); SJT-JETT was also significant (P = .0087). In responding to the directive, “Rank the performance of the models from best to worst,” users did not prefer junctional tourniquet models differently (P > .5, all models).ConclusionThe CRoC and SJT performed best in having least blood loss, CRoC performed best in having least time to hemostasis, and users did not differ in preference of model. Models of junctional tourniquet performed differentially by blood loss and time to hemostasis.KraghJFJr, LunatiMP, KharodCU, CunninghamCW, BaileyJA, StockingerZT, CapAP, ChenJ, AdenJK3d, CancioLC. Assessment of groin application of junctional tourniquets in a manikin model. Prehosp Disaster Med. 2016;31(4):358–363.

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