A psychological test is an objective and standardized measure of an individual 's mental and/or behavioral characteristics. A psychological test is an instrument designed to measure unobserved construct.
The importance of testing is also evident from historical review. The history of psychological testing is a captivating story that has substantial relevance to present-day practices.Historical developments are pertinent to contemporary testing for the following reasons:
1. A review of the origins of psychological testing helps explain current practices that might otherwise seem arbitrary or even peculiar.
2. The strengths and limitations of testing also stand out better when tests are viewed in historical con- text. The reader will discover, for example, that modern intelligence tests are exceptionally good at predicting school failure—precisely because this was the original and sole purpose of the first such instrument developed in Paris, France, at the turn of the twentieth century.
3. Finally, the history of psychological testing contains some sad and regrettable episodes that help remind us not to be overly zealous in our modern-day applications of testing.
1.0 Theoretical background
Psychological assessment is a process that involves checking the integration of information from multiple sources, such as tests of normal and abnormal personality, tests of ability or intelligence, tests of interests or attitudes, as well as information from personal interviews. Collateral information is also collected about personal, occupational, or medical history, such as from records or from interviews with parents, spouses, teachers, or previous therapists or physicians. A psychological test is one of the sources of data used within the process of assessment; usually more than one test is used. Many psychologists do some level of assessment when providing services to clients or patients, and may use for example, simple checklists to osis for treatment
References: Contextualising Psychological Assessment in South Africa Posted on July 3, 2012- S. Laher & K. Cockcroft Gregory, R.J. (2007). Psychological testing: History, principles, and applications (5th ed.). Boston, MA:Pearson.