| What is reliable methodlogies ? | will produce the same results each time they are used with a particular sample of individuals |
| What are reliable effects? | are replicated across a number of different studies and individuals. |
| What is reliability ? | The extent to which the findings or the results of the study is consistent |
| What is test-retest reliability? | This measures test consistency; the reliability of a test measured over time. The results are usually compared in a correlation, the correlation score of 1 is deemed to have good reliability. |
| What is inter-rater reliability ? | This is the idea that when 2 or more observers are observing and recording, this is particularly used when they have a checklist to look for to make sure that they are in agreement in what they observe. This allows for more objective results from an subjective situation. |
| What is validity? | Refers to the extent to which something is measuring what it claims to measure |
| What is concurrent validity? | asks whether a measure is in agreement with a pre-existing measure that is validated to test for the same concept. This is gauged by correlation measures against each other. |
| What is construct validity? | Refers to the degree to which a test measure what is claims or purports, to be measuring |
| What is predictive validity? | is the degree to which a test accurately predicts a criterion that will occur in the future. |
| What is external validity? | refers to whether the data is generalisable to the real world. |
| What is temporal validity? | This refers to whether the results and findings of the study are still valid to today’s world. A study with a high temporal validity is when it can be applied across time and still be relevant. |
| What is population validity? | A type of external validity which describes how well the sample used can be generalised to the whole population as a whole, it needs to be representative. |
| What is ecological validity | A measure of how a findings of a reserach can be applied to real life to a target population and predict behaviour |
