The designer should consider the traits similar to customer personas when selecting users for testing.

Customer personas are fictional representations of the target users of a product or service, based on

user research and data. Customer personas help the designer to understand the needs, goals,

behaviors, and p

of the users, as well as their pain points and challenges. Customer

personas also help the designer to empathize with the users and design solutions that meet their

expectations and requirements. [UX Designer Certification Prep: User Research], [UX Designer

Certification Prep: User Roles and Personas]

When selecting users for testing, the designer should aim to recruit users who match the traits of the

customer personas as closely as possible. This ensures that the users who participate in the testing

are representative of the actual or potential users of the product or service, and that the feedback

and insights gathered from the testing are valid and reliable. Selecting users who have traits similar

to customer personas also helps the designer to evaluate the usability and user experience of the

product or service from the user’s perspective, and to identify and prioritize the areas for

improvement. [UX Designer Certification Prep: User Research], [UX Designer Certification Prep: User

Testing and Evaluation]

Traits dissimilar to customer personas, traits similar to friends and family, and traits of the most

common demographic and ability are not criteria that the designer should consider when selecting

users for testing. These criteria can lead to biased or inaccurate results, as they do not reflect the

diversity and complexity of the user population. Users who have traits dissimilar to customer

personas may not have the same needs, goals, or expectations as the target users, and may provide

feedback that is irrelevant or misleading. Users who have traits similar to friends and family may not

be objective or honest in their feedback, and may have a different level of familiarity or expertise

with the product or service than the target users. Users who have traits of the most common

demographic and ability may not account for the variations and differences among the target users,

and may exclude or marginalize the users who have special needs or preferences. [UX Designer

Certification Prep: User Research], [UX Designer Certification Prep: User Testing and

Evaluation] Reference: [UX Designer Certification Prep: User Research], [UX Designer Certification

Prep: User Roles and Personas], [UX Designer Certification Prep: User Testing and Evaluation]