Educational research and development (R & D) is a process used to
develop and validate educational products. The steps of t
his process are
usually referred to as the R & D cycle , which consists of studying
research findings pertinent to the product to be developed, developing the
product based on the finding, field testing it in the setting where it will be
used eventually, a
nd revising it to correct the deficiencies found in the
field testing stage. In indicate that product meets its behaviorally defined
objectives