Recall that a sample should be an accurate representation of a population, because the total population may not be available.
An instrument that is externally valid helps obtain population generalizability, or the degree to which a sample represents the population.
For many first-timers with great ideas, the process is exciting but also a bit intimidating.
The goal for my talk was simple: To lay out a few practical tips for entrepreneurs to quickly validate their ideas.
If you find out it’s not, then good—you will have avoided wasting time and money and can move on to something else.
If you do validate your idea, then you’ve given yourself a much higher chance of succeeding with that product.
I also wanted to help them understand that even first-time entrepreneurs can launch successful products by taking a few easy (and often free) steps.
After validating several software products, including Product Plan, I’ve discovered that with the right process even inexperienced entrepreneurs can bring amazing products to market with excited buyers on the first day.
The remainder of this discussion focuses on external validity and content validity. Establishing eternal validity for an instrument, then, follows directly from sampling.
Researchers chose which type of instrument, or instruments, to use based on the research question.
Examples are listed below: is the extent to which an instrument measures what it is supposed to measure and performs as it is designed to perform.
The National Healthcare Safety Network (NHSN) is utilized by 32 states, the District of Columbia and the Centers for Medicare and Medicaid Services (CMS) for mandatory, public reporting of healthcare-associated infections (HAIs).
Validation activities have been conducted in many states to document compliance with NHSN protocols, evaluate consistency in applying case definitions, assess the adequacy of case detection, and determine the accuracy and completeness of data reported by facilities and to the public.