Services

Measuring Usability LLC can help with almost any quantitative work. Below are descriptions of some of the most common services that we've helped clients with.

Usability Testing & Analysis

I offer assistance for all stages of usability testing …

Planning

• Test design
• Sample Sizes
• User Selection
• Task Definitions
• Metric Selection
• Questionnaire Designs

Testing

• Onsite or remote testing of users
• Detailed metric collection
• Qualitative feedback summaries

Analysis

• Quantitative Analysis
• Summary of Qualitative Findings
• Questionnaire Reliability Analysis

Fore more information on my approach to quantitative usability testing see the downloadable guide How to conduct a Quantitative Usability Test

Typical Engagement Price Range: $5000 to $25,000

Featured Clients Using this Service: Sage Software, PayPal, Benten Technologies, Gallaudet University

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Statistical Data Analysis

For clients who need help running statistical analyses on:

• usability data
• sales data
• web-logs (conversion rates typically)
• experimental data
• surveys

..to answer specific questions such as :

• What are the key drivers of customer loyalty?
• What is the probability a user will purchase a product?
• Which promotion has a statistically higher conversion rate?
• Which experimental condition yielded the highest ratings?
• What sample size do we need?

I conduct analysis on both small and large datasets (10 rows to 1 million rows) and am proficient in the major statistical packages Minitab, SPSS and SAS, although I typically program my own statistical functions and calculators.

Typical Engagement Price Range: $2,000 to $14,500

Featured Clients Using this Service: Autodesk, eBay, Kelly Blue Book, Gallaudet University

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Practical Statistics for User Research Full Day Tutorial

An onsite or virtual full-day course which helps analysts solve the most common statistical problems:

• How usable is an application?
• What is the probability a user will purchase a product?
• How large of a sample size do we need?
• Which design is preferred?
• Which design has a statistically higher conversion rate?
• How long will it take users to complete tasks?

The course includes access to the Usability Statistics Package calculator and up to 8 hours of engaging instruction, handouts, animated graphics and entertaining video clips. Portions of this service are offered annually at the CHI, UPA or HCII conferences.

Typical Engagement Price Range: $5,000 to $8,500

Featured Clients Using this Service: eBay, AutoDesk

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Keystroke Level Modeling

This analytic technique allows you to predict how long it will take experienced users to complete a task. The method uses Keystroke Level Modeling based on decades of research on how long it takes humans to interact with software.

This approach provides estimates of task times to within an accuracy of 10%. It is best used for getting measures of efficiency when comparing designs or competing products. Live code isn’t needed, only sketches or screen shots can generate estimated times.

Clients get training in the method and access to a software application that will generate detailed estimates at the millisecond level. After just a couple hours of training, members of your organization (designers, product managers, researchers) will be generating accurate estimates.

For more background on using keystroke level modeling, see the paper Composite Operators for Keystroke Level Modeling.

Typical Engagement Price Range: $5,000 to $9,500

Featured Clients Using this Service: Sage Software

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Custom Excel Calculator Development

For clients who need an easy way to enter raw values and get a readable and accurate statistical interpretation I integrate statistical functions into Excel worksheets. The calculators typically will generate conversion rates, confidence intervals or perform other statistical tests.

Typical Engagement Price Range: $500 to $2000

Featured Clients Using this Service: Valassis Direct Marketing, Penn-Valley Group

Contact Measuring Usability LLC about Custom Excel Calculator Development