APA 7 Annotated Bibliography Example for Journal Articles

Thompson (2023) provided a comprehensive review of current research on microplastic contamination in freshwater environments including rivers, lakes, and groundwater systems. The article synthesized findings from over 150 studies conducted across different geographical regions on six continents, identifying primary sources of contamination including textile fibers from washing machines, tire wear particles from roads, and degraded larger plastics from landfills. Thompson documented the distribution patterns of microplastics, noting significantly higher concentrations near urban centers and industrial areas. The ecological impacts section detailed effects on aquatic organisms from ingestion and bioaccumulation through food chains.

Jackson and Sato (2024) conducted a meta-analysis of 34 randomized controlled clinical trials examining virtual reality applications for acute and chronic pain management. The authors systematically evaluated the methodological quality of included studies using the Cochrane Risk of Bias tool and calculated effect sizes for various VR interventions. Their findings suggested moderate to strong effects for acute procedural pain, particularly in burn care and wound management settings, with more variable results for chronic pain conditions. The methodological rigor of the meta-analysis is impressive, though the authors appropriately note limitations including small sample sizes in many primary studies.