Across
- 2. A single test. Most intelligence tests will contain a number of different ones, each measuring a certain skill or skills.
- 4. Derived scores that permit us to determine an individual’s position relative to the standardization sample (or any other specific sample).
- 5. A band or range of scores that has a high probability of including the examinee’s true score. The standard error of measurement provides the basis for forming this.
- 6. A score derived by computing the mean raw score of a measure for a group of children with a specific age. One of these scores of 9.5 on a reading test means that the child is reading at a level which is similar to that of the average nine year, six month old child.
- 8. The degree to which a test measures what it is supposed to measure.
- 10. The score an individual obtains on a test before it is transformed into a standard score.
- 12. The estimate of the amount of error usually attached to an examinee’s obtained score. It is directly related to the reliability of a test: the this is, the lower the reliability.
- 17. These provide a single-digit scoring system with a mean of 5 and a standard deviation of 2. The scores are expressed as whole numbers from 1 to 9.
Down
- 1. Refers to the consistency of a measurement. A test with a low degree of this should not be used.
- 3. The extent to which the findings differ from chance occurrence. Convention has established the .05 level as the minimum level of this indicating that observed differences are real; such results would occur 5 percent of the time by chance.
- 7. A very common type of distribution of scores. Many psychological traits are distributed roughly along this type of distribution.
- 9. Two or more subtests combined. For example, the Basic Reading ______ of the WJ III is comprised of the Letter-Word Identification and Word Attack subtests.
- 11. A score derived by computing the mean raw score obtained by children in each grade. It is usually expressed in tenths of a grade. One of these scores of 3.5 on a reading test means that the child is reading at a level consistent with the average child who is in the middle of the third grade.
- 12. The extent to which scores deviate from the mean.
- 13. Refers to the extent to which the norm group is characteristic of a particular population.
- 14. Raw scores that have been transformed to have a given mean and standard deviation. They express how far an examinee’s score lies from the mean of the distribution in terms of the standard deviation.
- 15. A mathematical average of all the scores in a set of scores. To obtain this, divide the sum of all the scores by the total number of scores in the set (N).
- 16. A standard score based on a distribution with a mean of 50 and a standard deviation of 10.