Page 538 -
P. 538
Index 531
respect, 476–478 problems with, 121
risks and concerns, 464–468 Quinn-Bederson model, 432
working with children, 481–482
rights, 474 R
Participatory design, 266 Random errors, 59–60
Pearson’s r value, 88 Randomization, 33–35, 33t
Perceptual disabilities, 493 reCAPTCHA, 426, 427f, 428
Phicons, 437 Regression, 91–93, 92–93t
Physiological data Relational research, 26–27, 27t
brain activity, 384–386, 385f Reliability, 317–319, 318t
cardiovascular signals, 383–384 Cohen’s Kappa, interpretation of,
electrodermal activity, 383 319, 319t
muscle tension, 384 stability and reproducibility, 317
respiration, 384 Remote data collection, 505–506
Pilot study Remote online usability, 414
logistics, 509–510 Remote usability testing, 280, 281t
survey, 126–128 Replication, 13–14
Policymaking, 13 Representative tasks, 268, 271
Predictor variables, 91 Representative users, 263
Print disabilities, 513 interface design, 268
Probabilistic sampling, 109–113, 116b user-based test, 268, 271
Proxy users, 503–504 Researcher-denoted concepts, 306
Psychology-based HCI research, 11 Research hypotheses, 27–32
Psychophysiology, 381 Research software, 349–353
data analysis, 389–390 children, reentry rates for, 352f
data collection, 387–389 Fitts’ Law, 349b
data interpretation, 390–394 mouse control, 349b, 351f
physiological data, 381–386 Respecting participants
Public policy, 12–13 practical issues, 478
study design, 476–477
Q Respiration, 384
Qualitative data analysis Retrospective session. See Interpretation
content analysis, 301–303, 302t session
coding schemes, 303–311
high-quality analysis, 314–320 S
text coding, 311–314 Saccades, 370–371
goals of, 300 Sample sizes, 504–505
multimedia content analysis, Screen-capture, 345
320–322 Screen reader user, 498
research design, 324b Semistructured interview, 198–200
stages of, 300 Sensor(s), 436
Questionnaire Sensors and ubiquitous computing
closed-ended questions, 120–121, 120f history, 437–439
open-ended questions, 119–120 research methods, 439–441
