Psychology

The testing company has hired qualified peopl in the field to administer thenew test bank to subjects of different ages and ethnic backgrounds. They need a sizable number of scores from inner city, urban and country/small town subjects. Their goal is to gather sufficient data for test:

a) validity
b) reliability
c) performance
d) standardization

I think d

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asked by Nicci
  1. Right.

  2. Thanks Ms. Sue for all your help with all my questions!

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    posted by Nicci
  3. You're very welcome.

    Please check these questions tomorrow to see if out psychology expert, PsyDag, has added additional information.

  4. You are right.

    Good tests require certain qualities.

    I. Objectivity indicates consistency among scorers, minimal scorer bias (r approaches +1 and is >. 90). Contrast with subjective evaluation, e.g., term papers.

    II. Reliability indicates the consistency of scores when give to same individuals (r approaches +1 and is >.90). It requires good level of objectivity.

    A. Test-retest indicates stability over time.

    B. Equivalent/alternate form indicates consistency over various forms of the same test .

    C. Split-half ) indicates consistency within a test (scores from even vs. odd items).

    III. Validity means that a test "measures what it claims to measure." Although valid test needs to be reliable, reliability does not ensure validity (IQ vs. height, table with rubber yardstick examples). Valid if it correlates with criterion measure (ACT scores vs. grades example).

    IV. Standardization involves two aspects.

    A. Tests run with same procedures and conditions each time given.

    B. The above allows the use of norms, comparison standards used to judge a specific score.

    I hope this additional information helps.

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    posted by PsyDAG

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