1. Concept: Answer is a termthat abstractly describes and names an object, a phenomenon,or an idea, thus providing it with a distinct identity or meaning. 2. Replication: Answer involves repeating a research study to determine whether its findings are reproducible. 3. Type I error: Answer This meansthat the researcher will allow for a 5% orlower probabilityof rejecting the null hypothesis when it is indeed true. 4. Type II error: Answer The probability of accepting the null hypothesis when it is false 5. Key Points: Answer A research problem is an area in which there is a gap in nursing'sknowledge base. The typical research problem includes background, a problem statement, and a justification for the significance of research in the area. • The major source for nursing research problems is clinical nursing practice. Othergood sources are discussions with peers, review of professional journals, and research priorities identified by specialty groups and professional organizations. Theories are fruitful sources for research problems for experienced researchers. • Replication is essential for the development of evidence-based knowledge for practice and consists of four types: exact, approximate, concurrent, and systematic. • The research purpose is the stated reason for conduct of a study. The purpose usually hints at whether the study will be interventional or non-interventional, and sometimes at the study design.Typically it mentions the population and the study'svariables or factors of interest. • Once the research purpose is decided upon, the research question can be formulated. If