Glossary | |
| These is glossary of research key terms. | |
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| Term | Definition |
| Reliability | Reliability is concerned with the consistency and dependability of a measuring instrument, i.e. it is an indication of the degree to which it gives the same answers over time, across similar groups and irrespective of who administers it. A reliable measuring instrument will always give the same result on different occasions assuming that what is being measured has not changed during the intervening period. A number of techniques can be used to ensure the reliability of a standardised measuring instrument such as an attitude questionnaire, personality test or pressure sore risk calculator. These include test-retest, split-half and alternate forms. There are also statistical tests that can be used to assess reliability such as Cronbach Alpha and the Spearman rho correlation coefficient test. |
| Replication | Outcome of elaboration in which the control variable has no effect on the original relationship between the two variables. |
| Replication (elaboration model) | a term used with the elaboration model to refer to the situation where a control variable results in the same distributions for partials that occurred in the original table of dependant by independent. For example if a sample were divided into ethnic groups and a relationship were still found between gender and income. |
| Representativeness | The attempt to ensure that a sample has the same characteristics as the population from which it is selected. Statistically this is sought by random sampling techniques. |
| Research hypothesis | Tthe hypothesis for chi square that states that two variables are related to each other (same as alternative hypothesis). |
| Research method | Specific procedures used to gather and analyse research data. |
| Research methodology | Different approaches to systematic inquiry developed within a particular paradigm with associated epistemological assumptions (e.g. experimental research, grounded theory, ethnomethodology). |
| Research question | A clear statement in the form of a question of the specific issue that a researcher wishes to answer in order to address a research problem. A research problem is an issue that lends itself to systematic investigation through research. |
| Response rate | The proportion (percentage) of those invited to participate in a research study who actually do so. |
| Row percents | Percentages in a table that add across to 100 percent. |
| Rule for computing percents | If the independent variable is the column variable, the percents should sum down to 100; if the independent variable is the row variable, the percents should sum across to 100. |
| Rule for interpreting percents | Compare in the direction opposite to the way the percents sum to 100. |
| Glossary V2.0 | |
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