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Laboratory study
* Laboratory studies are essential in management of many forms of hemorrhagic shock
  - can determine whether someone has a genetic disease
* Laboratory studies show it kills bacteria and fungus such as ringworm, athlete's foot
  - that manganese crosses the placenta and retards growth in fetal rodents
  - use research methods from psychology, biology and physics
* Some laboratory studies indicate that progesterone stimulates the growth of breast tissue.
* emphasizes experimental methods utilized to examine adaptive mechanisms.

Language study
* Language studies are encyclopaedic by nature.
* includes spelling and vocabualry.
* includes spelling, vocabulary, and learning about language history and structure
  - mechanics
  - vocabulary building and an understanding of the conventions of grammar
* includes vocabulary building and learning about grammar and spelling
  - language structure and use

Linkage study
* Linkage studies consider the cosegregation of a particular disorder with marker genes in families.
* fundamental subject for plant classical genetics.

Media study
* Media studies take some ideas from other areas of study, such as humanities and the social sciences.
  * Media studies' is an academic area of study about mass media and its history and effects. It mostly focuses on newspapers, radio, television, and internet. Media studies take some ideas from other areas of study, such as humanities and the social sciences.

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Medical study
* Medical studies indicate no increased risk of breast cancer with hormone replacement therapy
  - that estrogen natural protector from heart disease
* Medical studies show gardens can have a therapeutic value
  - it can cause asthmatics to convulse and die
  - no evidence of ozone causing cancer or lung allergies or harming the unborn
  - that stress plays an important role in several immune-mediated illnesses
  - therapeutic benefits for patients with anxiety disorders
  - support both chondroitin and glucosamine sulfate supplements
* Most medical studies have control groups that get placebos.

Molecular study
* Molecular studies are most advanced in the case of mercury resistance
  - can identify predisposing genes and elucidate their function
  - examine natural gene variation in seizure sensitive and resistant strains of mice
* Molecular studies show that Fungi and Animalia are more closely related than Fungi and Plantae
  - some polyploids originated more than once

National study
* National studies estimate that one of every three high school girls competes in some kind of sport
  - find that more than half of high school seniors are using marijuana
  - reveal that a large percentage of hate crimes are committed by juveniles
  - show a strong correlation between illiteracy and criminal behavior
* National studies show that electric light rail trains are safer than cars, trucks even buses
  - only half of the people who have diabetes know it

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New study
* New studies indicate that high levels of mercury are affecting the birds ability to reproduce
  - report that passive smoking increases the non-smoker's risk for cancer
  - say breast milk has particular fatty acids that enhance brain development
* New studies show eggs contain nutrients in the yolk that can enhance memory capabilities
  - iron as an oxidant, having the opposite effect of antioxidants
* New studies show that antidepressants are effective with children
  - daily consumption of dietary soy protein can promote bone health
  - midlife mothers live longer and have more brain cells