Words to Describe observational

Things observational often describes ("observational ________")

• data
• limits
• records
• network
• method
• criteria
• work
• series
• approach
• report
• studies
• approaches
• language
• assessment
• knowledge
• study
• procedures
• measure
• material
• base
• conditioning
• notes
• techniques
• categories
• error
• skills
• support
• experiences
• sciences
• consequences
• record
• unit
• program
• difficulties
• confirmation
• methodology
• astronomers
• designs
• results
• research
• bias
• evidence
• science
• methods
• powers
• cosmology
• equivalence
• strategies
• units
• instruments
• measures
• technique
• findings
• basis
• test
• assessments
• analysis
• fact
• constraints
• systems
• period
• learning
• astronomer
• tools
• errors
• concepts
• instrument
• terms
• adequacy
• reports
• selection
• statements
• tests
• equations
• accuracy
• uncertainties
• astronomy
• ratings
• procedure
• facts
• periods
• tool