iRubric: Practice 2 rubric

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Practice 2 Y502 Practice 2 Index of Dispersion, Summation, Scale, Ogive, PR, Distribution, Q Rubric Code: Y54B3 Ready to use Public Rubric Subject: Social Sciences Type: Assignment Grade Levels: Graduate

Question1 Descriptions
	Poor 0 pts	Fair 0.36 pts	Good 0.38 pts	Excellent 0.4 pts
Q1 Index of dispersion	Poor No number or equation	Fair The wrong equation is applied, or more than two numbers are incorrectly identified	Good One number is not correctly identified, or all numbers are correct except for the answer	Excellent The correct equation is correctly applied without any errors
Questions 2-4
	Poor 0 pts	Fair 0.18 pts	Good 0.19 pts	Excellent 0.2 pts
Q2 The application of the summation	Poor No number	Fair Numbers of the first and the second summation signs are incorrectly identified	Good Numbers of either the first or the second summation sign are incorrectly identified	Excellent Correct answer=215
Q3 Score interpretation	Poor No answer	Fair Mixing the information necessary for an absolute (criterion-referenced) with that for a relative (norm-referenced) interpretation	Good Partial information is provided for either an absolute (criterion-referenced) interpretation or relative (norm-referenced) interpretation	Excellent All information necessary for either an absolute (criterion-referenced) interpretation or a relative (norm-referenced) interpretation is provided
Q4a Ogive	Poor No graph	Fair Misplacing two or more dots	Good Misplacing one dot or the dot corresponding to 0% is not identified	Excellent All dots are correctly placed
Q4b Median	Poor No number	Fair The median identified is away from the correct answer (about 15) by more than 10 points without providing any reference lines	Good The reference lines for identifying the median is provided but it is misplaced (e.g. the horizontal line is placed at 40% not 50%)	Excellent About 15
Q4c Relative location of the mean	Poor No answer	Fair Incorrect reasoning is given for stating that either the mean or the median is larger	Good Providing a correct reasoning for concluding that either the mean or the median is larger, but a wrong direction is given	Excellent Mean > median
Q4d Q	Poor No answer	Fair Using the wrong equation, except for the equation for interquartile range or misidentifying both Q1 and Q3	Good Computing interquartile range incorrectly, or misidentifying Q1 or Q3	Excellent Around 5
Q4e Percentile rank	Poor No answer	Fair Misplacing the reference line for identifying the percentile rank	Good Add % to the answer	Excellent About 54
Q4f Percentage of scores	Poor No answer	Fair Providing a wrong number without showing any computation	Good Providing a wrong number with an incorrect computation	Excellent Correct answer=42