Daniela and Alicia are conducting a systematic observation study on children's aggressive behavior in the playground. Daniela concludes that boys display more aggressive behaviors than do girls, whereas Alicia concludes the opposite. Which methodological issue would be of most concern in this study?

Reliability.

The most reliable result will be accepted

Explanation:

The Reliability of a research is the extent to which such research is consistent with proven results. A study will be considered reliable if it can produce the same set of results consistently under the same conditions or environment.

Reliability in research mean Validity, it is a method of accessing how quality a procedure of measurement used in collecting a data is.

Types of Reliability.

1.Parallel form reliability.

2.Inter rater reliability.

3.Test - Retest reliability

4.Internal consistency reliability.

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