| Course | AC444 Accounting Visualization and Business Intelligence |
|---|---|
| Unit | Unit 2 |
| Paper type | Chart critique |
| Length | About 550 words, 4 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | BS in Accounting |
| Updated | October 2026 |
Free sample paper for AC444 Unit 2
A Lie Factor of 22.4: A Unit 2 Critique of a Pest Control Competitor's Investor Revenue Slide
[Student Name]
Purdue University Global
AC444: Accounting Visualization and Business Intelligence
Unit 2 Chart Critique
[Instructor Name]
[Date]
The competitor and its slide are composite; the books and article cited are real.
The Slide
Five shaded 3D columns show revenue for 2021 to 2025: $94.2, $95.8, $97.1, $99.0 and $101.2 million. The vertical axis starts at $90 million. A line on a right-hand axis, running only from 14.0 to 15.0 percent, shows operating margin rising from 14.2 to 14.9 percent. A company logo sits as a watermark behind the columns. The title reads "Five Years of Growth."
Computing the Lie Factor
Measured from the axis floor, the 2021 bar is 4.2 units tall and the 2025 bar is 11.2 units. The effect shown in the graphic is (11.2 minus 4.2) / 4.2 = 166.7 percent. The effect in the data is (101.2 minus 94.2) / 94.2 = 7.43 percent. Tufte (2001) calls the ratio of the graphic's effect to the data's effect the lie factor; an honest graphic scores close to 1. Here it is 166.7 / 7.43 = 22.4.
A truncated axis on a bar chart is not a stylistic choice but a measurable distortion, because a bar's length is its value, and a bar standing on a $90 million floor makes a 7 percent rise look like a near tripling.
Three Principles Applied
Data-ink. The depth, gradient shading and watermark carry no numbers. Removing them loses no information and makes the values easier to read (Tufte, 2001).
Dual axes. The margin line's axis covers only one percentage point, so a change of 0.7 points climbs most of the chart's height and appears to move with revenue. Few (2012) argues that two scales let the designer choose how closely two series appear to track each other; a different right-axis range would make the margin look flat.
Encoding. Cleveland and McGill (1984) ranked visual encodings by how accurately viewers decode them, with positions on a shared scale at the top, lengths below them, and areas and volumes near the bottom. The 3D columns push readers toward judging volume, the least accurate encoding, and the perspective makes the back faces of the columns appear taller than their values.
The Comparison the Slide Avoids
The company acquired two regional firms in 2023 and 2024. The slide never separates acquired revenue from organic growth, so investors cannot tell whether existing branches grew at all. Research on annual reports has found that companies tend to use graphs selectively and to distort them in ways that flatter performance (Beattie & Jones, 1992).
The slide also omits the costs of those acquisitions. Margin rising from 14.2 to 14.9 percent may reflect the acquired firms' higher-margin commercial contracts rather than better operations at the original branches, and the slide gives no way to tell.
Redrawn
Two panels. The upper panel shows revenue as flat 2D bars from a zero baseline, each bar stacked into organic and acquired revenue. The lower panel, sharing the year axis, shows operating margin as a line on its own scale from 0 to 20 percent. The title states a finding: revenue grew 7.4 percent in four years, mostly through acquisitions.
References
Beattie, V., & Jones, M. J. (1992). The use and abuse of graphs in annual reports: Theoretical framework and empirical study. Accounting and Business Research, 22(88), 291-303. https://doi.org/10.1080/00014788.1992.9729446
Cleveland, W. S., & McGill, R. (1984). Graphical perception: Theory, experimentation, and application to the development of graphical methods. Journal of the American Statistical Association, 79(387), 531-554. https://doi.org/10.1080/01621459.1984.10478080
Few, S. (2012). Show me the numbers: Designing tables and graphs to enlighten (2nd ed.). Analytics Press.
Tufte, E. R. (2001). The visual display of quantitative information (2nd ed.). Graphics Press.
AC444 Unit 2 instructions, in plain terms
Unit 2 of AC444 asks you to critique a published business graphic using named principles. Describe the graphic precisely: chart type, axes and their ranges, series, decoration and title. Measure distortion where you can, for example by computing Tufte's lie factor from bar heights and data values, and show the arithmetic. Apply at least three principles by name, such as data-ink, the problems of dual axes and the accuracy ranking of visual encodings, each attached to something a reader can point to on the slide. Then identify the comparison the graphic avoids, the one its audience most needs, and explain why it matters. Support the point about selective graphs in corporate reporting with research. Close with a redesign described in enough detail to build. Cite the graphic's source and the visualization literature in APA 7.
How the AC 444 Unit 2 example is put together
The sample describes the slide: five 3D columns from 2021 to 2025, an axis floor at $90 million, a margin line on a right axis from 14.0 to 15.0 percent, a watermark and a growth title. The lie factor section measures bars of 4.2 and 11.2 units, computes 166.7 percent against 7.43 percent and reaches 22.4. The highlighted sentence explains why truncation distorts bars in particular. Three principles follow: data-ink, Few on designer-chosen dual scales and Cleveland and McGill's encoding ranking. The avoided comparison is acquired versus organic revenue after two acquisitions, supported by Beattie and Jones on selective graphs in annual reports, with a note on margin mix. The redesign uses zero-based stacked bars and a separate margin panel with a finding as its title.
Reading the AC444 Unit 2 grading rubric
AC444 chart critiques are graded on precise description, correct measurement and the application of named principles to specific features. The lie factor or a similar measure should be computed with the arithmetic shown. Each principle must be tied to something visible in the graphic, not described in general. Graders give significant weight to identifying the comparison the graphic avoids, since that is where a critique moves from design to analysis. Evidence that such choices occur in corporate reporting adds depth. The redesign should fix the faults identified and be specific enough to build, with a title that states a finding. Accurate citation of the graphic and of the visualization sources is expected. Organization and APA 7 form close out what Purdue Global marks in this critique.
Common AC444 Unit 2 mistakes, and how to avoid them
Many Unit 2 critiques list every flaw they can find without measuring any of them. Others apply principles by name but never point to the feature they concern. The truncated axis is criticized on a line or dot chart, where it can be acceptable, or missed on a bar chart, where it is not. The critique stops at design and never asks what comparison the audience needed. The redesign is a sentence long. If your section supplies a graphic from a news outlet, an annual report or a government agency, our writers can measure it, apply the principles and redraw it.
Get an AC444 Unit 2 example written to your instructions
Send the graphic assigned for Unit 2, or the source you picked if the choice was yours, together with the rubric and any readings your section names for its principles. The measured critique and redraw come back within 24-48h, and the first custom sample is free. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.
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AC444 Unit 2 questions, answered
What is a lie factor and how is it computed?
Edward Tufte defined it as the size of an effect shown in a graphic divided by the size of the effect in the data. The sample measures bar heights above the truncated baseline, computes their percentage change, and divides by the percentage change in revenue. A value near one means the graphic is faithful; the slide's 22.4 means it exaggerates growth more than twentyfold.
Why is a second axis a problem if both are labeled?
Because the designer chooses both scales, and with them the apparent relationship between the two series. Stephen Few's argument is that labeling does not fix this: readers compare the lines' shapes and slopes, not the tick values. A margin moving four tenths of a point can be drawn as steep as revenue rising seven percent, which is exactly what the slide does.
Does the graphic have to be a real published one?
Many AC444 prompts ask for a graphic from a news outlet, annual report or investor presentation, and the critique should then cite its source. The sample uses a composite slide so that no real company is misrepresented, but the measurements and principles work identically on a real graphic. Send the one your section assigns and it is critiqued with its citation.
Where can I find a free AC444 Unit 2 sample paper?
This page holds a complete AC444 Unit 2 chart critique of a composite competitor's investor revenue slide, with a lie factor of 22.4, three named principles, the avoided comparison, a redesign and APA 7 references.
How is the lie factor computed in AC444 Unit 2?
The bars grow from 4.2 to 11.2 units, a 166.7 percent effect in the graphic, while revenue grows from $94.2 to $101.2 million, 7.43 percent in the data. Dividing the first by the second gives 22.4.