RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
THE SCIENTIFIC METHOD AND DESCRIPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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positively skewed
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negatively skewed
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symmetrical
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impossible to predict without more information
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Detailed explanation-1: -So the answer to our question is that if the test was very easy and only a few of the students has a very low scores, then definitely most of the scores of the dataset is going to be towards right and then our dataset is going to be skewed towards the left.
Detailed explanation-2: -An easy test will result in a left-skewed (negatively skewed) distribution of the scores. Thus, the tail of that score distribution will be the lower marks which are on the left-hand side.
Detailed explanation-3: -It is said to be positively skewed if the scores are concentrated at the lower end of the measurement scale. For example, test scores on a very difficult exam probably follow a positively skewed distribution, because most of the students probably will score quite low and only a few students probably will score high.
Detailed explanation-4: -A skewed distribution with the tail on the right-hand side is said to be positively skewed (because the tail points towards positive numbers).