Compare Scores With Standard Deviation

Question

Using two different measurement instruments (A and B) to measure the same variable, a researcher collected data from a group of subjects. The researcher wants to compare subjects’ scores on the two different sets of data. Descriptive statistics are as follows:

                                    Range             Mean              S.D.

Instrument A               20 to 100         60                    9

Instrument B               30 to 150         92                    15

Data from the first 3 subjects is as follows:

                        Score on A                 Score on B

Subject 1                     68                                124

Subject 2                     32                                58

Subject 3                     84                                130

a) Compare subjects’ scores across tests A and B (SHOW YOUR Z-SCORE CALCULATIONS).

Summary

The question belongs to Statistics and it discusses about comparing subjects’ scores with standard deviation.

Total Word Count 171

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