Is the degree of relationship between an instrument and the construct it is inte

Question

Is the degree of relationship between an instrument and the construct it is intended to measure? is the consistency with which an instrument assesses a given construct? reliability; validity; reliability internal validity; external validity external validity; internal validity not enough information A person's observed response pattern on any measurement scale is a combination of true score and error. in the context of this equation, "error" refers to. random error systematic error sampling error combination of a and b combination of a, b, and c none of the above Discuss some of the different ways. that systematic vs. nonsystematic error can affect, the outcome of a study.

Explanation / Answer

1) Reliability is the degree of  relationship between an instrument and the construct it is intended to measure. Validity is the consistency with which an instrument assesss a given construct.

2)A person observed response pattern on any instrument scale is a combination of true score and error. in the context of this equation error refers to Random error and systematic error.

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