2. Types of Tests and Scales of Measurement

Psychometric Soundness

Technical quality and precision of a test.

Test's Technical Quality

Consistency and accuracy of test content.

Test Utility

Usefulness or practical value of a test.

Test

Measuring device or tool for assessment.

Psychological Test

Measures variables related to psychology.

Test Developers/Publishers

Create tests and assessment methods.

Test User

Professional administering the test.

Test Taker

Subject of the assessment or evaluation.

Society

Represents the interests of test takers.

Test Content

Subject matter intended to be measured.

Test Format

Structure and layout of test items.

Test Administration Procedures

Skills required for credible test administration.

Test Scoring & Interpretation

Evaluation conveying performance of a task.

Level A Tests

Common tests requiring basic administration skills.

Level B Tests

Intermediate tests needing technical knowledge.

Level C Tests

Advanced tests requiring specialized training.

Magnitude

Property indicating lower or higher amounts.

Equal Intervals

Consistent differences between scale numbers.

Absolute Zero

Indicates absence of the measured property.

Nominal Scale

Simplest measurement categorizing objects.

Ordinal Scale

Ranking of individuals or objects.

Interval Scale

Equal gaps between numbers on the scale.

Ratio Scale

Meaningful comparisons with an absolute zero.