Flashcards in Module 3 Deck (13):
Collecting observations for research effort
-Generic term that researchers use for a measurement device (survey, test, questionnaire, physiologic device).
-Also referred to as a “tool”.
Types of Measures include
1. Cognitive (assess knowledge or achievement)
2. Affect (interest, values, attitudes)
3. Psychomotor (skills)
4. Physiologic (indicators of physiologic function such as BP, temp, respirations, ECG/EEG, blood tests, weight, height, etc.)
Degree to which measures yield consistent results
Ability of a scale to measure what was intended to measure.
Reliability is concerned with
The consistency of a measurement method.
A scale that does not produce similar scores for a subject with repeat testing is considered
Unreliable and results in increased measurement error.
How well the instrument reflects the abstract concept being examined.
No instrument is
Completely valid, so researches determine the degree of validity rather than whether validity exists.
Validity will vary from one sample to another and one situation to another: therefore,
Validity testing evaluates the use of an instrument for a specific group or purpose, rather than the instrument itself.
Examines the extent to which a measurement method includes all the major elements relevant to the concept being measured.
Two scales measure the same concept are administered to a group at the same time, and the subjects’ scores on the scales should be positively correlated.