Ch. 2 Flashcards
(32 cards)
In which area of the country Pellagra was especially widespread in the United States in the early 1900s ?
Southern US
At the time of Dr. Goldberger’s research, what type of diet was associated with poverty?
Low-protein
A(n) ________ is a possible explanation for an observation that guides scientific research.
Hypothesis
Nutrient deficient diseases are the results of:
-Lack of proper nutrition
-Poor diets
An anecdote _______ considered scientific evidence.
Is not
____________ is a disease that was widespread in the United States during the early 1900s. People with this disease dealt with weakness, diarrhea, skin rashes, and mental confusion.
Pallagra
Nutrition researchers rely on the __________ which involves making observations, asking questions, and developing hypotheses.
Scientific Method
Name of doctor who discovered that the disease pellagra was related to a lack of meat, milk, and other foods typically eaten by people with high incomes, rather than an infectious disease.
Dr. Goldberg
A process that tests a hypothesis in order to generate a conclusion, which can be reported and then confirmed or refuted by additional studies, is called the ____________.
Scientific Method
A possible explanation for an observation that guides scientific research is a called a __________.
Hypothesis
When a friend tells you she is taking a vitamin B complex supplement and she feels more energetic as a result, she is sharing an ________ or personal experience.
Anecdote
Def. Experiment
systematic way of testing a hypothesis.
List the events prior to the publishing of experimental results in scientific journals.
-Critical review by other subject-matter experts.
-Subject-matter experts ensure objective research findings are published.
List the steps of the Scientific Method beginning with making observations that generate questions.
The participants in an experiment who are not given the treatment being tested are known as the __________.
Control Group
Def. Anecdote
personal report concerning the effectiveness of a treatment.
Def. Experiment
systematic way of testing a hypothesis.
Def. Experimental (treatment) group
in a controlled study, group that receives a treatment.
Def. Control Group
in a controlled study, group that does not receive a treatment.
Def. Variable
factor that can change and influence an outcome of a study.
Def. In Vivo
describes experiments that use living animals.
Def. In Vitro
describes experiments on cells or other components derived from living organisms performed in a test tube.
Def. Confounding Variables
factors that are not being studied but may affect a research outcome.
Def. Epidemiology
study of the occurrence, distribution, and factors that contribute to health problems in populations.
