1. Which of the following is an example of test–retest reliability A researcher
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Question
1. Which of the following is an example of test–retest reliability
A researcher establishes that a series of items in a questionnaire are measuring the same construct.
A researcher showed that participant responses in a survey were consistent both times the assessment was completed.
Two raters of the same behavior are in agreement with what they observed.
A researcher determines that the items on a measure are measuring what they are intended to
2. Which of the following is an example of internal consistency?
A researcher shows that multiple items in a survey are measuring the same construct.
A researcher shows that responses in a survey are consistent at two times.
Two raters of the same behavior are in agreement with what they observed.
A researcher shows that a measurement for a variable or construct measures what it is purported or intended to measure.
3. Which of the following is an example of inter-rater reliability?
A researcher shows that multiple items in a survey are measuring the same construct.
A researcher shows that responses in a survey are consistent at two times.
Two raters of the same behavior are in agreement with what they observed
A researcher shows that a measurement for a variable or construct measures what it is purported or intended to measure.
4. A researcher measures the body weight of participants over time and finds the measure to be stable or consistent. However, the scale itself was off by about 10 pounds. Which of the following is an accurate description of the reliability and validity of this measure of body weight?
The measure has high reliability and low validity.
The measure has low reliability and high validity.
The measure has low reliability and low validity.
The measure has high reliability and high validity.
a.A researcher establishes that a series of items in a questionnaire are measuring the same construct.
b.A researcher showed that participant responses in a survey were consistent both times the assessment was completed.
c.Two raters of the same behavior are in agreement with what they observed.
d.A researcher determines that the items on a measure are measuring what they are intended to
Explanation / Answer
1. Answer (b)
Same test when conducted twice over a period of time to a group of individuals is Test Retest Reliability.
2. Answer (a )Multiple items in a survey are measuring the same construct.
Internal consistency is a measured based on correlations between different items on same test. It measures whether several items that propose to measure the same general construct produce similar scores.
3. Answer (c )
Inter rater reliability is degree of agreement among raters.
4. Answer(a)
Validity is how well a test neasures what it is purported to measure.
Reliability is when the test reports same value each time
Hence, here since the body weight is stable and consistent over time, it is RELIABLE.
But, since the scale itself is off by 10 pounds, measure has LOW VALIDITY.
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