Professional Summary
UX Research Junior with a background in psychology and hands-on experience in experimental and behavioral research. Led an experimental UX study with 60 participants, measuring reaction time in safety-critical decision scenarios. Skilled in research design, participant testing, data analysis (SPSS), and translating findings into clear, actionable UX insights.
Experience
UX Research Project – Traffic Light Reaction Time Study
Designed and conducted an experimental UX research study with 60 participants to examine how color hue affects reaction time in safety-critical decision-making. Analyzed behavioral data using SPSS and translated findings into UX and design implications for time-sensitive interfaces.
Education
B.A. in Psychology
Tel-Hai Academic College
Focus on experimental research, data analysis, and academic writing
Skills
UX Research
Experimental Design
Behavioral Measurement
Data Analysis (SPSS)
Quantitative Research
Insight Synthesis
Research Communication
Yaniv Rosen
Haifa, Israel | +972-52-351-6412 | yaniv4101@gmail.com
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UX Research
Traffic Light Orange Color Effectiveness Study
Summary
This study investigated the effect of different shades of orange on visual reaction times, with implications for pedestrian safety at crosswalks in Israel. We compared two shades: the current Israeli traffic light orange and the American "Safety Orange" used in high-visibility applications. Reaction times were measured using a Psychomotor Vigilance Task (PVT) in two experimental settings: a controlled laboratory environment and an online setting.
Participants: 60 adults (ages 18–50) with normal or corrected-to-normal vision.
Method
- Participants responded as quickly as possible to orange stimuli appearing on various backgrounds (neutral gray and shades of blue simulating sky).
- Five conditions were tested, combining the two shades of orange with different background contrasts.
- Reaction times were analyzed using repeated-measures ANOVA, with follow-up comparisons to examine differences between shades and contrast levels.
Key Findings
- In the laboratory setting, no statistically significant difference was found between the two shades on a neutral gray background.
- In the online setting, Safety Orange produced slightly faster reaction times than the Israeli orange, highlighting potential sensitivity to environmental factors (e.g., screen type, lighting).
- Across both settings, higher contrast between the orange stimulus and background consistently improved reaction times, supporting the importance of color contrast in visual detection.
Limitations
- The PVT task is a simplified visual reaction measure and does not fully replicate the complexity of real-world driving.
- Differences between laboratory and online results suggest environmental and methodological factors can influence outcomes.
- Sample size was relatively small, and stimuli were displayed on computer screens, which may not perfectly represent actual traffic light colors.
Implications
The findings provide preliminary evidence that both color choice and contrast influence visual reaction speed, which could inform future studies on traffic signal design. Further research in real-world driving conditions is needed before translating these findings into policy recommendations.
Tools & Skills Demonstrated
SPSS
Experimental Design
Behavioral Measurement
Data Analysis
UX Insight Synthesis
Research Writing