HELP ASAP Which of the following statements describes a set of measurements that closely agree with other measurements in the data set but do not match the actual value?
The measurements are both accurate and precise.
The measurements are accurate but not precise.
The measurements are precise but not accurate.
The measurements are not accurate or precise.
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Explanation:
statements describes a set of measurements that closely agree with other measurements in the data set but do not match the actual value?
The measurements are both accurate and precise.
The measurements are accurate but not precise.
The measurements are precise but not accurate.
The measurements are not accurate or precise.
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Option A) The measurements are both accurate and precise.
- A construct's measure's reliability is determined by how predictable and consistent it is. To put it another way, given that the underlying phenomenon is assumed to remain constant, do we consistently obtain the same result when using this scale to measure the same construct? People estimating your weight is one instance of an incorrect measurement.
- Most likely, different guesses will result in conflicting measurements, making the "guessing" method of measurement inaccurate. Using a weight scale might be a more accurate measurement since, unless your weight has changed between measures, you will likely obtain the same result each time you walk on the scale.
- Be aware that consistency but not accuracy are implied by reliability. In the weight scale example from earlier, if the weight scale is calibrated wrongly (for instance, to deduct ten pounds from your actual weight to make you feel better! ), it will not measure your actual weight and is not a reliable indicator of your weight. The scale is reliable since it consistently displays a weight that is ten pounds under your actual weight (despite being out of calibration).
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