Experimental method manipulates variables to determine cause-and-effect relationships. Researchers randomly assign participants to control or experimental groups. Independent variable is manipulated, dependent variable is measured. Scientific method and positivism form basis of experimental approach
IA is a self-directed laboratory report marking student's chemistry understanding. Report length increased from 6-12 pages to 3,000 words from May 2025. Report must include research question, methodology, data analysis, and conclusion
Written by Elliot Aronson during Stanford fellowship in 1970-1971. Aims to explain relevance of social psychology to contemporary society. First edition published in 1972, now in tenth edition
Test determines flexural, core shear, and facing strength in sandwich construction. Evaluates both continuous (balsa wood, foam) and discontinuous (honeycomb) bonding surfaces
Determines Charpy impact strength of plastics under defined conditions. Suitable for various materials including thermoplastics, thermosets, composites and polymers. More applicable than ISO 180 for materials with interlaminar shear fracture
Standard specifies method for testing tensile properties of vulcanized and thermoplastic rubbers. Determines tensile strength, elongation at break, and other stress-strain properties