Sight Distance and Reaction Time. Sight Distance. Sight distance means the distance from which you can see and identify a hazard. You often see an object before youâre able to identify it as a hazard. If the stopping distance to an object is greater than the sight distance, youâre in danger of hitting the object.
The major methodology of this approach is the single-case experiment, or N = 1 design. Although there are many kinds of N = 1 designs, the most common are the ABAB design and the multiple-baseline design. An ABAB design, or reversal design, allows a researcher to confirm a treatment effect by showing that behavior changes systematically with conditions of No Treatment (baseline) and Treatment.
Definition of Research Design. The term âresearch designâ can be defined as, The systematic study plan used to turn a research question or research questions into a âtesting projectâ or âexperimental studyâ. OR. A research design is a set of advance decisions that make up the master plan specifying the methods and procedures for collecting and analyzing the needed information. A research design is based on the research questions and can be considered as a blueprint for research, addressing at least four of the problems: