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Recall the fundamental steps required to find the median of a dataset as described in the text. Detail what must be done to the scores first, and describe how the process differs depending on whether the dataset has an odd or an even number of scores.
Question: Recall the fundamental steps required to find the median of a dataset as described in the text. Detail what must be done to the scores first, and describe how the process differs depending on whether the dataset has an odd or an even number of scores.
Sample answer: To find the median, the scores must first be arranged in order from lowest to highest. If the dataset has an odd number of scores, the median is the single middle score in the ordered sequence. If the dataset has an even number of scores, there are two middle scores, and the median is the value halfway between them.
Key points:
- Arrange scores from lowest to highest
- Identify the middle score when there is an odd number of scores
- Calculate the value halfway between the two middle scores when there is an even number of scores
Rubric: The response must state that: 1) The first step is to arrange the scores from lowest to highest. 2) If the number of scores is odd, the median is the middle score. 3) If the number of scores is even, the median is the value halfway between the two middle scores.
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Research Methods in Psychology - 4th American Edition @ KPU
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Recall the fundamental steps required to find the median of a dataset as described in the text. Detail what must be done to the scores first, and describe how the process differs depending on whether the dataset has an odd or an even number of scores.
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