Tools of Research

Tools of Research

1. Variables can refer to phenomena that are very clear and other to complex ones. That is why selecting and instrument is important.

   • Performance tests:
     • Begin with a clear statement of the objectives.
       • Provide a problem that gives ss the opportunity to perform.
         • Develop an instrument.

2. Tests: they look for responses on the basis in which numerical scores are assigned.

   • There are some types: achievement tests (skillful preparation), standardized tests (academic objective), researcher made tests (it can be tailored to be specific), norm referenced and criterion referenced tests (compare individuals), test performance range (subjects can perform fully their ability)
     • Test perfomance may be restricted by the floor effect.

3. Aptitude test: it attempts to measure general ability

   • They can be used with individuals and others with groups. Individuals: The most widely used individually administered instruments for measuring aptitude are the Stanford–Binet Intelligence Scale and the three Wechsler tests.