N257 Week 12
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. What would you like to do?
What type of directness of measurement involves concrete things like oxygen saturation, VS, weight?
What type of directness of measurement involves abstract concepts like pain, depression, coping, etc.?
What is the term for the difference between the true measure and what is actually measured?
What type of measurement error happens when the difference is without pattern?
(e.g. sometimes scores are high, sometimes low, don't get same answer each time)
What type of measurement error happens when the variation in measurement is in the same direction? Consistent error occurs when the measurement approach does not represent the true score (e.g. uncalibrated scale)
What is the lowest of the four levels of measurement, includes mutually exclusive, named, and exhaustive categories? Gender, ethnic background, race
What level of measurement involves order/ranking imposed on categories, numbers preserve order, and have unequal intervals?
Army ranks (1-enlisted personnel, 2-noncommissioned officer, etc.)
What level of measurement includes numerical distances between intervals that are equal and the absence of a zero point? Temperature
What level of measurement is the highest level of measurement and is a continuum of values with an absolute zero point? Weight, age, length, volume
What is the term for what is concerned with how consistently the measurement technique measures the concept of interest and is concerned with the amount of random error?
What are the three types of reliability?
What type of reliability is the consistency of performance among different raters in assigning scores to the same objects or behaviors in the same measurement situation, using the same tool and/or the same predefined criteria?
What includes two or more raters with the same patient?
What includes two or more forms with the same patient?
What is the term for the consistency of measurements that one instrument or tool elicits from one group of subjects on two separate measurement occasions? Stability of the test
What is the term for the consistency with which one rater assigns scores to a set of behaviors on two occasions? Stability of the rater
What is the term for if the items are related to each other and if they're measuring the same thing?
What does homogeneity test?
internal consistency reliability
What determines homogeneity?
Cronbach's alpha coefficient
What is the term for the extent to which an instrument or measurement approach measures the actual parameter of interest of the true score? Concerned with the amount of systematic error
What type of validity is the extent to which the content of a scale is representative of the conceptual domain it is intended to measure?
What type of validity is when a new method of analysis is compared to a gold standard?
What type of validity is the extent that the measure relates to other measures of similar concepts?
What type of observational measurements involves recording what is seen and is less objective?
What type of observational measurements uses category systems, checklists, and rating scales?
What is the term for what is most commonly used to describe opinions or attitudes and describes degree of agreement, evaluation, and frequency?
What type of measurement scale consists of questions with two opposing adjectives with 7-point scale and is used to measure attitudes or beliefs?
semantic differential scales
What type of measurement scale is a 100 mm line and the participant marks rating point on the line?
visual analog scales
What type of measurement scale involves rating something on a scale from 0-10?
numeric rating scales
What would you like to do?
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