Parallel forms reliability also called equivalent forms reliability uses one set of questions divided into two equivalent sets forms where both sets contain questions that measure the same construct knowledge or skill.
Example of equivalent forms reliability. Both groups take both tests. This can be examined by having groups of subjects take the two forms of the test to see if they do equally well on both. What Is Market Research.
Split a test in half. The consistency of results across alternate versions. Equivalent forms reliability is a term used in psychometrics the measurement of intelligence skills aptitudes etc to determine whether or not two or more forms of tests that are designed to measure some aspect of mentality are truly equivalent to one another.
The parallel forms approach is very similar to the split-half reliability. Parallel forms reliability can help you test constructs. If they do the two forms are said to have equivalent.
Estimating reliability by means of the equivalent form method involves the use of two different but equivalent forms of the test. Group A takes test A first and group B takes test B first. We illustrate the computation and interpretation of parallel form reliability by another example due to Sprinthall.
Alternate form reliability occurs when an individual participating in a research or testing scenario is given two different versions of the same test at different times. The correlation between the two parallel forms is the estimate of reliability. What is Parallel Forms Reliability.
In statistics parallel forms reliability measures the correlation between two equivalent forms of a test. This technique is also referred to as the method of equivalent forms. As the name applies the technique uses two parallel forms A and B and these are administered to the same group one test immediately or fairly soon following the other.