Human-Computer Interaction: Historical Context, The Human Factor, Interaction Elements, and Empirical Research Methods

Comprehensive practice flashcards covering Chapters 1 through 5 of Human-Computer Interaction: An Empirical Research Perspective, detailing historical milestones, human factors, interaction elements, scientific foundations, and experimental design methodology.

In what year and publication did Vannevar Bush publish the influential essay "As We May Think"?

It was published in July 1945 in The Atlantic Monthly.

What conceptual information retrieval machine, proposed by Vannevar Bush in 1945 to address information overload through associative indexing, is depicted here?

The memex desk concept.

What pioneering computer program for interactive graphics was developed by Ivan Sutherland as part of his PhD thesis at MIT in 1962?

Sketchpad (which operated on the TX-2 computer using a light pen).

Who coined the term "direct manipulation" to characterize interfaces with object visibility, rapid reversible actions, and syntactic correctness?

Ben Shneiderman (1983).

In what year and at what institution did Douglas Engelbart invent the computer mouse?

In 1963 at Stanford Research Institute (SRI).

Which experimental input device from English, Engelbart, and Berman's 1967 text-manipulation study is shown in this photograph?

The knee-controlled lever.

In English, Engelbart, and Berman's 1967 user study comparing six display-selection devices, which device achieved the lowest error rate?

The mouse, with an error rate of $0.099$.

What was the first commercially released computer system that featured a graphical user interface (GUI) and mouse pointing?

The Xerox Star, launched in 1981 at the National Computer Conference (NCC) in Chicago.

In what year was ACM SIGCHI formed, and what was the milestone celebrated in 2022?

ACM SIGCHI was formed in 1982, and 2022 marked the 40th anniversary of its annual "CHI" conference.

Which influential descriptive cognitive engineering model developed by Stuart Card, Thomas Moran, and Allen Newell (1983) is shown in this diagram?

The Model Human Processor (MHP).

According to the Model Human Processor calculation, what is the nominal reaction time $RT$ to confirm if two sequentially presented symbols match?

$RT = t_p + 2 \times t_c + t_m = 100 + 2(70) + 70 = 310\,ms$ (with a range of $130\text{--}640\,ms$).

On what date was the Apple Macintosh commercial aired during Super Bowl XVIII, and who directed it?

January 22, 1984; it was directed by Ridley Scott.

In Newell's Time Scale of Human Action, which band corresponds to actions occurring within $10^{-1}$ to $10^1$ seconds?

The Cognitive Band, which encompasses deliberate acts ($100\,ms$), operations ($1\,s$), and unit tasks ($10\,s$).

According to Kantowitz and Sorkin's (1983) Human Factors Model, how do the human user and computer machine interface with each other?

Computer Displays feed information to human Sensors, and human Responders operate computer Controls, mediated internally by the human Brain and Machine State.

What portion of the retina is occupied by the fovea, and what visual angle does the foveal image cover?

The fovea occupies about 1% of the retina (projecting to 50% of the visual cortex) and spans approximately $1^\circ$ of visual angle.

What is the primary operational difference between an eye fixation and a saccade?

A fixation is a stationary dwell where the eyes absorb visual detail (typically lasting at least $200\,ms$), while a saccade is a rapid repositioning movement lasting approximately $30\text{--}120\,ms$.

What four core properties characterize auditory stimuli in human hearing?

Loudness, pitch, timbre (harmonic richness), and attack (onset envelope).

In psychophysics, what is the definition of the "just noticeable difference" (JND)?

The threshold of difference between two stimuli below which an observer perceives them as being identical.

What is the typical total time breakdown for a human to make a simple sensorimotor decision?

Sensory reception ($1\text{--}38\,ms$), neural transmission to brain ($2\text{--}100\,ms$), cognitive processing ($70\text{--}300\,ms$), neural transmission to muscle ($10\text{--}20\,ms$), and muscle latency/activation ($30\text{--}70\,ms$), totaling $113\text{--}528\,ms$.

What capacity limit did George Miller (1956) establish for short-term/working memory?

$7 \pm 2$ chunks of information.

What neurological anatomical map, showing human responders and the relative proportion of motor cortex area dedicated to each, is illustrated here?

Wilder Penfield's motor homunculus.

What is the Stroop Effect?

A demonstration of interference in cognitive processing where naming the font color of a printed word takes longer when the word spells a conflicting color name.

What formula defines pointer Movement Variability ($MV$) along an axis?

$$MV = \sqrt{\frac{\sum (y_i - \bar{y})^2}{n - 1}}$$

What text entry metric calculates the minimum number of character insertions, deletions, and substitutions required to convert transcribed text into presented text?

Minimum String Distance (MSD).

What target acquisition technique is illustrated in this diagram, where target selection is maintained even when leaving the target boundary?

Spatial hysteresis.

What target acquisition technique dynamically resizes the cursor's effective activation area based on Voronoi regions, as shown here?

The Bubble Cursor (Grossman and Balakrishnan, 2005).

What is the formula for calculating Scansteps Per Character (SPC) using a letter-frequency list?

$SPC = \frac{\sum (S_c \times F_c)}{\sum (N_c \times F_c)}$, where $S_c$ is scansteps to input character $c$, $F_c$ is frequency in a corpus, and $N_c = 1$.

What are the optimal control mappings for isotonic and isometric joysticks?

Isotonic joysticks (sensing displacement) map optimally to position control; isometric joysticks (sensing force) map optimally to velocity control.

What are the six degrees of freedom (DOF) of an object in a 3D environment?

Three positional degrees of freedom ($x, y, z$) and three angular degrees of freedom ($\theta_x, \theta_y, \theta_z$, commonly called pitch, roll, and yaw).

Why are interaction modes necessary when manipulating a 3D graphic object using a standard mouse?

Because the mouse has only 2 degrees of freedom ($x, y$ displacement), which is fewer than the degrees of freedom required by the 3D display object, necessitating mode switches (such as a rotate mode).

What are the three distinct definitions of "research" outlined in scientific foundations?

1. Careful or diligent search; 2. Collecting information about a particular subject; 3. Investigation or experimentation aimed at discovering/interpreting facts or revising accepted theories/laws in light of new facts.

What is an H-index as defined by J. E. Hirsch (2005)?

A researcher has an H-index of $n$ if they have published $n$ papers that have each received at least $n$ citations.

How do observational, correlational, and experimental empirical research methods differ in setting and goals?

Observational methods are qualitative, conducted in real-world settings (high relevance, low precision); correlational methods look for relationships without proving causality; experimental methods use controlled laboratory setups to establish cause-and-effect relationships (high precision, low relevance).

What key property distinguishes interval data from ratio data?

Interval data have equal distances between adjacent values but lack an absolute zero (e.g., Celsius temperature, Likert scales), whereas ratio data possess an absolute true zero, permitting valid ratios and multiplicative comparisons.

What is the primary difference between internal validity and external validity?

Internal validity is the confidence that observed effects are solely caused by the independent variables under test, whereas external validity is the extent to which findings generalize to other people and settings.

What are the four tips recommended for finding an HCI research topic?

1. Think small; 2. Replicate; 3. Know the literature; 4. Think inside the box.

In experiment design, what conceptual metaphor is illustrated by decomposing what is observed and measured into a variable of interest versus random variation?

The signal-and-noise metaphor.

What is a confounding variable in an HCI experiment?

An extraneous circumstance that covaries systematically with an independent variable, creating ambiguity about which factor produced the observed effect.

What are the main advantage and main disadvantage of a within-subjects experimental design?

The main advantage is requiring fewer participants and controlling for individual participant variance; the main disadvantage is the emergence of order effects (such as fatigue or practice transfer).

What structural property characterizes a Balanced Latin Square for counterbalancing within-subjects conditions?

Each test condition appears in every ordinal position equally often, and each condition precedes and follows every other condition an equal number of times.

What is asymmetric skill transfer, and what two design choices can prevent it?

It occurs when learning transfer from condition A to B is not equal to transfer from B to A; it can be prevented by providing thorough practice trials prior to data logging or by using a between-subjects design.

What is the System Usability Scale (SUS)?

A 10-item questionnaire using 5-point Likert response scales that yields an overall usability score out of 100.