… Before leaving the “true” experiments for the quasi-experimental designs, we wish t explore
Some other extensions from this simple core, extensions appropriate to all of the designs to …

… In this article we review the use of experimental designs in … We also review the use of
quasi-experimental designs in … For both experimental and quasi-experimental designs, we …

… research designs used within experimental and quasi-experimental research, highlighting
their advantages and limitations with a view to helping researchers select designs that are …

… If we could try hundreds of designs and for each see the resultant answer, we … the design
that generated the answer we wanted! The lack of availability of outcome data when designing …

… Quasi-experimental designs (QEDs) are increasingly employed to achieve a balance between
internal and external validity. Although these designs … used QEDs (prepost designs with …

… quasi-experimental design: This category of design is most frequently used when it is not …
of quasi-experimental and true experimental design. QUASI-EXPERIMENTAL DESIGNS IN …

… This paper outlines design, measurement and statistical issues that must be … quasi-experimental
evaluation. We discuss challenges for the internal validity of quasi-experimental designs…

… When properly done, when attention is given to the specific implications of the specific
weaknesses of the design in question, quasi-experimental analysis can provide a valuable …

… Those who use structural equation models could benefit from greater familiarity with quasi-experimental
design because of its long tradition of recognizing the importance of time lags. …

This chapter deals with experiments where, for a variety of reasons, you do not have full
control over the allocation of participants to experimental conditions as is required in true …