Interior Design Research & Evidence-Based Practice 4 — Questions and Answers
Question 1: Evidence-based design in healthcare settings has most consistently demonstrated a link between single-patient rooms and:
- Reduced construction costs
- Lower hospital-acquired infection rates (Correct answer)
- Shorter nursing station distances
- Increased family waiting area demand
Correct answer: Lower hospital-acquired infection rates
Research shows single-occupancy patient rooms reduce cross-contamination risk compared to shared rooms, lowering HAI rates.
Question 2: A triangulated research approach in interior design means:
- Using three separate contractors to validate construction bids
- Combining multiple methods or data sources to cross-verify findings (Correct answer)
- Applying triangular geometry to space planning layouts
- Conducting three rounds of client approvals
Correct answer: Combining multiple methods or data sources to cross-verify findings
Triangulation strengthens validity by converging evidence from different methods (e.g., surveys, observations, and interviews).
Question 3: Which biophilic design research finding has the strongest empirical support in healthcare environments?
- Blue paint reduces patient aggression more than green paint
- Views of nature are associated with faster postoperative recovery (Correct answer)
- Curved furniture reduces anxiety better than rectilinear furniture
- Water features lower blood pressure more than artwork
Correct answer: Views of nature are associated with faster postoperative recovery
Roger Ulrich's landmark 1984 study found patients with window views of trees recovered faster and required less pain medication than those facing a wall.
Question 4: In survey research, 'construct validity' means:
- The survey is administered consistently across all participants
- The measurement tool accurately captures the theoretical concept it intends to measure (Correct answer)
- The survey questions are free of grammatical errors
- The sample size is large enough to achieve statistical power
Correct answer: The measurement tool accurately captures the theoretical concept it intends to measure
Construct validity ensures that a scale or instrument genuinely measures the abstract concept it is designed to assess.
Question 5: A designer conducting a literature review would use which database to find peer-reviewed interior design and environmental psychology studies?
- IMDB
- ArchNet / JSTOR / EBSCO (Correct answer)
- LinkedIn Learning
- Houzz Pro
Correct answer: ArchNet / JSTOR / EBSCO
Academic databases like JSTOR, EBSCO, and ArchNet index peer-reviewed journals relevant to design research and environmental psychology.
Question 6: The primary purpose of an Institutional Review Board (IRB) in design research involving human subjects is to:
- Approve the aesthetic merit of the research presentation
- Ensure participant safety, privacy, and informed consent (Correct answer)
- Validate the statistical methods used in the study
- Certify the designer's professional credentials
Correct answer: Ensure participant safety, privacy, and informed consent
IRBs review research protocols to protect human participants from harm, ensure voluntary informed consent, and safeguard privacy.
Question 7: Wayfinding research in healthcare environments consistently recommends which design strategy to reduce patient disorientation?
- Identical color palettes on all floors for brand consistency
- Landmark elements and color-coded zones at decision points (Correct answer)
- Minimalist signage to reduce visual clutter
- Identical corridor widths throughout the facility
Correct answer: Landmark elements and color-coded zones at decision points
Distinct landmarks and color-coded zones at intersections give patients and visitors clear cognitive anchors for navigation.
Interior Design Research & Evidence-Based Practice 4
Evidence-based design in healthcare settings has most consistently demonstrated a link between single-patient rooms and: