DATA COLLECTION
Likert or Analog
What is scale
The lowest level of measurement. Data are categorized simply into groups.
What is Nominal?
When selecting an instrument of study, researchers must first ask themselves if it is________.
What is Valid?
The ability to measure to produce the same results under the same conditions.
What is reliability?
Ex post facto
What is retrospective design?
What is Questionnaires?
A continuum of numeric values where the intervals are not meant to be equal.
What is ordinal?
A threat to external validity when the instrument does not measure theoretical concepts.
What is Construct Validity?
A measure at two different times with no treatment in between will yield the same results.
What is test-retest?
This is a non-experimental design that gathers data from a group of subjects at only one point in time.
What is cross-sectional?
Quantitative studies highest level of evidence which clinician can use to base EBP decisions
What is Numbers
The highest level of measurement that involves numeric values that begin with an absolute zero and have equal intervals.
What is ratio?
Ensures that the instrument measures the concept.
Content Validity
Estimates of reliability are usually represented in this___________.
What is correlation coefficient?
A retrospective study that compares two groups.
Provide a wide range of biological, chemical, and microbiological data.
What is Physiological Measures?
Measurement where only two possible fixed responses exist.
What is Dichotomous?
A true reflection of sample characteristics. The discrepancy between the actual value we're trying to measure and the number we used to represent that value.
What is measurement error?
An attribute of reliability when the instrument renders the same scores with repeated measures under the same conditions.
What is stability?
This type of study is used to gather data about subjects at more than one point in time.
This must be solid prior to beginning research. It involves a timeline, framework, budget, and a carefully selected data collection method.
What is a plan?
Interval or ratio level of data that use a continuum of numeric values with equal intervals.
What is continuous data?
Examples include: hypothesis testing, convergent testing, divergent testing, known group testing, and factor analysis.
What are ways to determine construct validity?
Examples include: stability, equivalence, and internal consistency.
What are attributes of reliability?
This is a specific type of nonexperimental cross-sectional design where more than one group of subjects is studied at the same point in time.
What is cohort comparison?