Erol Ahmed on Unsplashed https://unsplash.com/photos/aIYFR0vbADk

After you have completed your regression and analyzed the fit of the model, there are certain assumptions that have to be met in order to appropriately estimate the population parameters and conduct tests of statistical significance. Here is a quick primer on them:

1. No specification error.

a.No relevant independent variables have been excluded from the model.

b. No irrelevant variables have been included.

c. The relationship between Y and each X is linear, and that the effects of the k independent variables are additive.

2. No measurement error.

a. All variables have been measured without error.

b. All independent…


Image of Vespa by Ruslan Bardash from Unsplashed

Having hired and mentored several researchers over the last 10 years, often my direct reports or others in the field have asked me what they could do to become a better researcher and be more successful. At a very high level being a good researcher is about two things: Firstly, how well have you mastered your craft. Secondly, how hard do you work to ensure that your insights, ideas and product recommendations make it into the product.

The good news is that most researchers, since they are armed with graduate degrees, have good understanding of research methodologies when they enter…


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Increasingly, I am finding that I have to ask designers to run lightweight usability tests. Here are some tips that I wrote for our design team at Webex Cisco.

Write an introduction to provide context to the testers. Provide them a scenario, ask them to imagine and experience in being the shoes of the person from whose perspective the tests are written. Don’t ask participants to start doing tasks cold without an introduction.

· When writing questions/tasks more context is good, this holds especially true when you are running unmoderated tests.

· Don’t use any language on the UI…


As more and more learning moves online, educators and students are scrambling to figure out how to make online education effective. The research team at Cisco Webex spent time with educators and students to understand their needs and challenges in the online learning environment. Based on the interviews with 39 educators and students in the US and Europe, we have compiled a list of best practices that could help educators and students to get the most out of online learning.

Educators:

· If this is your first virtual class, then do a test class with a colleague. This will help…


Research Team doing affinity diagramming

User Research to Inform Collaboration Tools

We know different people use collaboration software in different ways. Some use collaboration tools like Webex every day, some might use them rarely, some might look for wow factor, some might be looking for efficiency. So how do you build a collaboration tool for millions of knowledge workers? This is where personas can help. Instead of creating designs that are based on intuition, gut, and preferences of the design team, personas can help us understand the needs of users and build products and designs that speak to those needs.

Research Methodology

The research team at Webex recently set out to create personas…


Increasingly, I am finding that I have to ask designers to run lightweight usability tests. Here are some tips that I wrote for our design team at Webex Cisco.

· Write an introduction to provide context to the testers. Provide them a scenario, ask them to imagine and experience in being the shoes of the person from whose perspective the tests are written. Don’t ask participants to start doing tasks cold without an introduction.

· When writing questions/tasks more context is good, this holds especially true when you are running unmoderated tests.

· Don’t use any language on the UI…

Mani Pande

UX Researcher, mother, aspiring chef, biker

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