Modifiers matching research:

• atmospheric,
• basic,
• objective,
• medical,
• scientific,
• related,
• vital,
• fundamental,
• educational,
• quantitative,
• technological,
• outside,
• expensive,
• immoral,
• empirical,
• mental,
• traditional,
• social,
• political,
• academic,
• atomic,
• experimental,
• civilian,
• developmental,
• psychological,
• legitimate,
• archaeological,
• evolutionary,
• professional,
• necessary,
• molecular,
• independent,
• immunological,
• original,
• clinical,
• primary,
• literary,
• ecological,
• qualitative,
• analytical,
• internal,
• attitudinal,
• scholarly,
• biomedical,
• taxonomic,
• legal,
• structural,
• written,
• conventional,
• relevant,
• astronomical,
• descriptive,
• biological,
• sensitive,
• theoretical,
• historical,
• linguistic,
• future,
• reputable,
• valuable,
• published,
• critical,
• industrial,
• secondary,
• common,
• economic,
• current,
• administrative,
• animal,

Simple categories matching attitudinal:

• research,
• topic,
• information,
• data,
• measure,
• meaning,
• requirement,
• study,