3 Evidence Based Nutrition Practices Flashcards
Science
A method of attempting to arrive at objective truths.
Hypothesis
A proposed explanation for a problem or set of observations.
The scientific method
The process of formulating explanation about the natural world and testing those explanations with experiments and data.
Evidence Based Practice
A three pronged approach to working with clients, which consists of making decisions based ono the weight of the scientific evidence, field observations, and individual client needs and preferences.
Prediction
An expected outcome generated from a hypothesis
Theory
A hypothesis or set of hypotheses for chick a large body of high-quality evidence has been accumulated.
Anecdote
An account of a persons experience or event
Primary Research
Original research where scientists perform experiments and collect data - this is in contrast to secondary research where scientists analyze data that has already been collected or published somewhere.
Observational Research
Research in which a researcher observes ongoing behaviors to determine correlation.
Correlation
A relationship between two or more variables.
Randomized Control Trial (RCT)
A type of scientific study/trial where participants are randomly assigned into different groups - one or more will be the intervention to be tested and one will be the control group. Groups are randomized and a control is used in an attempt to reduce potential bias in the trial.
Independent Variable
The variable scientists manipulate in an experiment
External Validity
The ability to generalize the results of a study.
Systematic Review
A review where scientists systematically gather all research on a topic and evaluate it based on predefined criteria and rules.
Meta-Analysis
A statistical analysis of a group of studies to assess the overall weight of the evidence.
Empirical
Based on observation or experience
Test-Retest Reliability
The ability to get similar results when something is measured under the same conditions.
Reliability
The consistency of a measure.
Validity
The assessment of weather a tool is measuring what it is supposed to measure.
Selection Bias
A sample of people under study is not representative of the larger population that scientists are looking to make inferences about.
Retrospective
Describes a study that looks backwards in time.
Recall Bias
The inability to accurately remember past behaviors.
Peer Reviews
The critical evaluation of a study by other scientists.
