Screen reader choice affects time and effort for accessing math: JAWS users completed a quadratic-equation task faster than NVDA users¶

Claim · All claims
Evidence · 1 study · review r2 · q2
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Using a keystroke-level model task analysis, JAWS users completed a quadratic-equation information task in 132 seconds while NVDA users took 203.28 seconds, with JAWS users requiring fewer mental operations. → Steinbach 2022

Evidence¶

Steinbach 2022¶

Steinbach, S. (2022). Looking beyond vision: Supports for students who are blind or visually impaired in mathematics. NWEA. https://www.nwea.org/research/publication/looking-beyond-vision-supports-for-students-who-are-blind-or-visually-impaired-in-mathematics/

q2 · i? · review · r2

The review reports, citing Da Paixão Silva et al. (2017), a keystroke-level model analysis of BVI users extracting information about a quadratic equation via screen readers: "JAWS had the fastest time recorded at 132 seconds" versus NVDA at 203.28 seconds. The model equated a keystroke to 0.28 seconds and a mental operation to 1.2 seconds.

"JAWS had the fastest time recorded at 132 seconds, with 30 keystrokes, 28 mental operations, and 88 seconds of wait time. NVDA had the slowest, with 203.28 seconds, 21 keystrokes, 67 mental operations, and 117 seconds of wait time."

Discussion¶

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