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524 Index

Big data approaches, 5 Children’s Online Protection Act, 425
Blind users, 497–499, 506, 509–510, Chi-squared test, 94–96
513–514 Classical research methods, 266, 267t
IRB form, 514–516, 515f Clickstream analysis, 265
task performance, 426b, 462b Closed-ended questions, 120–121, 120f
Blog, 135, 144 Cloud-based services, 469
Blood-volume pressure (BVP), 383–384 Coding
Body-mounted sensors, 387 code structure, building, 309–311, 310f
definition, 303–304
C emergent coding, 304–308
Captioning, 494 grounded theory, 304–308, 305f, 308f
Cardiovascular signals, 383–384 priori coding, 304, 309
Case study theoretical frameworks, 309
analysis and interpretation, 176–178 Cognitive disabilities, 493, 495
challenges, 153 challenges, 512
cherry-picking, 168 participants, 511–512
choosing cases, 172–174 visual Likert scale, 512, 512f
critical cases, 173 Cognitive walkthrough, 269
data collecting, 175–176 Completely Automated Public Turing
data sources and questions, 174–175 test to tell Computers and
definition, 153, 156 Humans Apart (CAPTCHA),
demonstration, 160, 164–165 426
description, 160, 162 Computerized data collection systems,
documenting, 178 329, 330f
edge cases, 160 Computer-Supported Cooperative Work
embedded/holistic, 169–170 (CSCW), 8
ethnography vs., 232 Conceptual mapping, 207
explanation, 159–160 Confidentiality, 473
exploration, 159–160 Construct/factorial validity, 315
goals, 159–165 Content analysis, 221
hypotheses, 170–172 audience content, 301
in-depth investigation, 156–157 categories of, 302t
informal case studies, 180–182 coding schemes
intrinsic/instrumental, 165 code structure, building, 309–311,
lab-based usability studies, 157 310f
multiple data sources, 157–159 definition, 303–304
presentation of data and analysis, 178 emergent coding, 304–308
qualitative data and analysis, 159 grounded theory, 304–308, 305f,
research questions, 170–172 308f
single/multiple, 165–169 theoretical frameworks, 309
story-telling, 178 data set, 301–303
writing up, 178–179 definition, 301
Causality, 5 high-quality analysis, 314
Central tendency, 74–75 reliability, 317–319, 318–319t