data collection methods Flashcards
objective
measurable
not influenced by the person who collects the information
systematic
means the data that is gathered is collected in the same methodical way by every person involved in the data collection process
consistency
in data collection will minimize bias that can occur when more than one researcher is collecting data
interventional fidelity
the reliable and competent implementation of the data collection methods that includes
- adherence to the delivery of the prescribed collection method
- competence of the research team to collect the data - training
interrater reliability
is the degree on consistency between two or more raters who are independently assigning ratings to a variable or attribute that is being investigated
physiological measurements
are techniques to measure physiological variables directly or indirectly such as heart rate, blood pressure and temperature
observational methods
can operationalize some variables such as traits, symptoms, verbal and nonverbal communication, behaviours, activities and skill attainment
scientific observation
watching for specific events/reactions/moments
-observations are undertaken that are consistent with the study’s specific objectives
- a standardized and systematic plan exists for the observation and recording of the data
- all observations are checked and controlled
- the observation are related to scientific concepts and theories
concealment
study method in which the participants do not know they are being observed
- is done when the researcher is concerned their presence will impact or change the participants behaviour
scale
when indirect items of interest are combined to obtain an overall score
ex: intelligent test
likert scale
rate answers from strongly agree to strongly disagree
reliability
represents the consistency of the measurement obtained
validity
determining the extent to which the instrument reflects the abstract concept being examined
