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A Commitment to Reliability, Validity, Ongoing Research Support of Products.
Inscape Publishing is committed to maintaining the highest standards of instrument development and application through careful research and development processes. We ensure all of our instruments offer valid scores and accurate feedback to the respondent. Each instrument is designed to provide reasonably accurate interpretations or feedback based on your scores.
What Does Valid and Reliable Mean?
Validity indicates whether an assessment measures the concept it is intended to measure. Reliability indicates whether an assessment is measuring a concept consistently.
Why is Validity and Reliability Important to Me?
Inscape Publishing's learning instruments help you better understand yourself and others by clarifying what you are thinking and feeling in a particular situation. Within our learning instruments, you can find your responses and tendencies and compare them with those of others. You receive an interpretation of your results to help you better understand and explain your responses along with assisting you in most effectively and efficiently reaching your goals.
However, it is important to note that a learning instrument can only provide useful feedback if it measures what it claims to measure and if it does so consistently. Many companies just give you their best guess. They tell you what they think their assessment measures and what they think your results mean. Inscape Publishing uses research to insure that our instruments provide you with accurate and meaningful information. Research means that the content of our assessments is based on the real-world experiences of people nation-wide rather than the beliefs of a few individuals. Through research, we maximize the accuracy and usefulness of our products for you.
Instruments that use participant responses to generate inferences about an individual’s behavior or traits must meet the following standards of reliability and validity:
• Reliability: Scales demonstrate an acceptable level of internal consistency and
independence. Test-retest reliability is examined when the instrument is designed to
measure stable traits.
• Validity: The model represented din the instrument is examined in an ongoing program
of validation to include the following measures:
Content Validity--scale definitions are grounded in a thorough review of research
literature on the subject being measured.
Divergent Validity--individual scales demonstrate a satisfactory degree of
independence. Correlations with measures that are not intended to
measure the same thing demonstrate a low level of relationship.
Convergent Validity--different measures of the same concept tend to include the
same control and/or produce similar results.
Construct Validity--the behavioral model represented in the instrument is
validated using one or more appropriate statistical techniques such as factor
analysis or multiple-dimensional scaling. Ongoing research provides
additional information on what is or is not being measured by the instruments
and this information is shared with users.
What is a Research Report?
A research report provides information on the history and development of a learning instrument. In addition, information is included on how the reliability and validity of the instrument was established. You can access Inscape Publishing Research Reports for many of our products by accessing our Free Downloads page.
Quality Checklist
• solid base of research
• substantial claims
• validity
• reliability of 7.0 or higher
• scaled on current population
• appropriate applications
• engages the learner
• easily administered and interpreted
• confidential, non-threatening feedback
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