nutrition exam 1 section 2: food choices and nutrition research

Factors that influence food choice

Taste, cost, culture, family, habits, emotions, convenience, advertising, and health

Biggest factor that influences food choice

Taste

Experimental research

Research in which investigators manipulate a variable to test its effects

Observational research

Research that observes people and examines relationships without assigning an intervention

Correlation

An association between two variables; it does not prove that one causes the other.

Randomized controlled trial

 An experiment in which participants are randomly assigned to treatment and control groups

Control group

The comparison group that does not receive the experimental treatment or receives a control treatment

Placebo

An inactive treatment used for comparison in a study

Peer review

Evaluation of research by other experts before publication

Scientific method

A systematic process of asking questions, forming hypotheses, testing them, and evaluating results

24-hour dietary recall

 A record of everything a person remembers eating and drinking during the previous 24 hours

Food frequency questionnaire

 A tool that measures how often a person eats particular foods over a period of time

Dietary assessment

The process of evaluating a person’s food and nutrient intake

Golden Standard for Studies

Double-blind placebo-controlled randomized controlled trial (rct)