Summary Importantly, evidence search through databases and reliable sources is a critical skill that directly impacts a nurse’s competence in evidence-based practice. One might not be as well informed about a specific condition, such as pneumonia, which is why being able to identify valid and accurate search locations is of paramount relevance for nursing efforts. The database assessment will primarily focus on pneumonia as the core case variable. Communication Strategies to Encourage Diagnosis-Based Research As a nursing leader, one should be highly careful when attempting to increase competence among nursing professionals since the process involves educational measures, power dynamics, and related emotional risks. An effective manager needs to be able to help his or her subordinate without undermining their existing capabilities. The primary approach needs to be focused on diagnosis-based research, where the core communication strategy is a transversal one, which is evidenced by the fact that such a method is devoid of common barriers (Dalcól et al., 2018). It should also be noted that communication is highly important for educational outcomes and satisfaction because it can lead to knowledge improvement through retention and a positive perception of managerial efforts for education (Turkelson et al., 2017). Therefore, the communication should be focused solely on the topic and be more horizontal. The Best Places to Complete the Research To determine where to search for accurate research and literature, one should adhere to the CRAAP principles. These include purpose, accuracy, authority, relevance, and currency (“Evaluating sources: The CRAAP test,” 2021). If a source or database satisfies all five aspects of an outstanding source, it is included in the identified list. The ranking of the sources is based on how current, relevant, authoritative, accurate, and purposeful they are in all of these dimensions. Identification of Five Sources for Evidence of Clinical Diagnosis The clinical diagnosis of interest is pneumonia, mostly caused by external agents, such as viruses or bacteria, rather than internal problems, such as metabolic syndromes. The sources are as follows: National Library of Medicine PubMed, CINAHL, the Journal of Infectious Diseases, the Journal of Infection, and the New England Journal of Medicine . The first two databases are extensive and relevant in all contexts, whereas the latter two are specifically useful for the selected diagnosis of pneumonia. Explanation of Why the Sources Provide the Best Evidence The main reason the identified sources were selected and ranked as such is the CRAAP characteristics and differences. PubMed and CINAHL are highly respectable databases with internal infrastructure that adhere to the core principles of CRAAP. In other words, the sources within these databases are current, relevant, authoritative, accurate, and purposeful if the search conditions are set properly (“Website research: CRAAP test,” 2021). PubMed is ranked higher than CINAHL due to the higher availability of pneumonia-based results, which adhere to CRAAP requirements. In the case of the latter three, all three are comparably relevant, but the Journal of Infecti