2931105
Description
Flashcards by Peter Hoskins, updated more than 1 year ago
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Created by Peter Hoskins
over 10 years ago
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| Question | Answer |
| Repeatable | If the investigation is repeated by yourself, using the same method, and the same results are obtained, the data is…. |
| Resolution | The smallest change in the quantity being measured (the smallest division on the measuring instrument) is the.... |
| Valid | Data collected in an investigation that is reliable and answers the original question is…. |
| Reproducible | If the investigation is repeated by another person, or by using different equipment or techniques, and the same results are obtained, the data is…. |
| Independent variable | The variable that is changed or selected by the investigator is the….. |
| Dependent variable | The variable that is measured for each change in the independent variable is the…. |
| Control variables | Variables that could affect the outcome of the investigation, so need to be kept constant are… |
| Continuous variables | Any variable with numerical values that can be counted or measured are…. |
| Categoric variables | Variables that have values that are given as labels (words) are…. |
| Range | The results recorded in an investigation can be summarised by referring to the maximum and minimum values; this is the….. |
| Interval | The quantity between readings is the....... |
| True value | If a measurement is achieved without any errors, the investigator has found the…. |
| Precise | If measurements have very little spread around the mean value they are…. |
| Accurate | Measurements that are close to the true value are…. |
| Anomalies | Values in a set of results which do not fit the pattern of the other results - they are not included in any averages.... |
| Random errors | When measurements are spread around the true value in an unpredictable way, they are… |
| Systematic errors | When readings differ from the true value by a consistent amount each time a measurement is made, they are…. |
| Zero errors | Readings obtained using a measuring instrument that gives a reading even when nothing is being measured are…. |
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