RESEARCH METHODOLOGY

Detailed explanation-1: -Examples of quasi-experimental studies follow. As one example of a quasi-experimental study, a hospital introduces a new order-entry system and wishes to study the impact of this intervention on the number of medication-related adverse events before and after the intervention.

Detailed explanation-2: -Quasi-experimental research involves the manipulation of an independent variable without the random assignment of participants to conditions or orders of conditions. Among the important types are nonequivalent groups designs, pretest-posttest, and interrupted time-series designs.

Detailed explanation-3: -Physical height may be a quasi-independent variable where people are separated into groups of being very tall, or not. Eye color, hair color, native language, and other initial differences that participants arrive with and cannot be changed but are the focus of the research can be quasi-independent variables.

Detailed explanation-4: -They charge that he instead implemented a quasi-experimental design of matched pairs regarding the distribution of subjects within the experimental and control groups.