Quantitative Research
Method
that emphasizes objective
measurements and the statistical, mathematical,
or numerical analysis of data
collected through
polls, questionnaires, and surveys.
V
Validity of Measurement
How well a measure
accurately represents an
outcome. Some measures
have better validity
than others. For example, surveying patients
about the severity of their symptoms in the last
two weeks may provide more accurate answers
than asking them about symptoms a year ago.
Variable
Characteristic that varies from one
study
participant to another.
Independent variables
are the cause and
Dependent variables are the
effect or outcome
Y
Year Awarded
The year the PCORI Board
of Governors
approved funding for the project or the year the
proposal received a notice of award.
Research 101 Glossary
1515 Poydras. St.
New Orleans LA, 70112 Tel: 504.301.9800 Fax: 504. 301. 9801
Additional Resource
PCORI Research Methodology 101