Search
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

# Item Analysis - Assignment Example

Summary
The author of this assignment "Item Analysis" provides statistical data on item analysis. It is mentioned here that the process of item analysis is an ideal candidate for gathering this information. There are a number of ways in which the items on a test may be analyzed…

## Extract of sample"Item Analysis"

Download file to see previous pages This information needs to be interpreted in context to the principles on the basis of which the test was designed. A test that was given at the beginning of a course simply to assess which concepts a class was familiar with would be expected to have a positive skew; as there would be fewer items that students would be able to answer. On the other hand; if this test was given to assess mastery or proficiency; these scores would indicate that a number of course goals were not met. If the test were given in order to choose a few individuals who are proficient in very advanced concepts; it would be acceptable that a majority of scores are clustered towards the lower half; as only a few individuals would qualify by getting higher scores.It is also necessary to assess if these results are caused by a few erroneous or confusing items. This may be done by evaluating the trends seen for each item. A competency test typically contains a few simple items, a few difficult items and a few items with moderate difficulty. A speed test, on the other hand, requires all items to be similarly difficult. For a competency test; it is necessary that we choose items that not only have different levels of difficulty; but also discriminate between individuals who are able to solve it and those who are not. A good item would typically help us in understanding how well the individual test taker has mastered the individual concept while also helping us differentiate those who did master the concept from those who did not....
Also; the Alpha coefficient is affected by the length of the test; with the reliability being higher and more trusted for a longer test than a shorter one. The given test is only 10 items long; and this may compromise the reliability to some extent. The skewed scores also present other concerns. The Standard Error of Skewness for this test may be calculated by using the Tabachnick & Fidell’s (1996) formula . This provides us with a SES value of 0.245. If we define the acceptable limits within which the value of skewness may fall as being between 2 SES both sides of zero; then we may accept a value that falls between – 0.49 and + 0.49. the obtained value of + 0.78 is well outside these limits, indicating that there is a positive skew to the scores and a significant clustering of scores towards the lower side of the scale. This information needs to be interpreted in context to the principles on the basis of which the test was designed. A test that was given at the beginning of a course simply to assess which concepts a class was familiar with would be expected to have a positive skew; as there would be less items that students would be able to answer. On the other hand; if this test was given to assess mastery or proficiency; these scores would indicate that a number of course goals were not met. If the test were given in order to choose a few individuals who are proficient in very advanced concepts; it would be acceptable that a majority of scores are clustered towards the lower half; as only a few individuals would qualify by getting higher scores. It is also necessary to assess if these results are caused by a few erroneous or confusing items. This may be done by evaluating the trends seen for each item. A ...Download file to see next pagesRead More
Cite this document
• APA
• MLA
• CHICAGO
(“Item Analysis Assignment Example | Topics and Well Written Essays - 1000 words”, n.d.)
(Item Analysis Assignment Example | Topics and Well Written Essays - 1000 Words)
https://studentshare.org/statistics/1431388-item-analysis.
“Item Analysis Assignment Example | Topics and Well Written Essays - 1000 Words”, n.d. https://studentshare.org/statistics/1431388-item-analysis.
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Flynn effect
This study looks into Flynn effect, as the rise in the ability scores based on the three intelligence quotient (IQ) points that researchers have observed over generations. More so, the research results indicated that IQ scores of populations have undergone linear and interrupted change over time, as individuals experience an increase in the average human capabilities.
8 Pages(2000 words)Assignment
Media Analysis
Having premiered at 1967 as a weekly show the program is still running today. It is one of the longest running in the history of radio and comedy. (Crisell, 2002, p.26) The main reason for its success is due to how it allows endless creativity and humour within a simple framework of rules.
4 Pages(1000 words)Assignment
CVS Caremark ratio analysis
CVS Caremark enjoys a great deal of financial stability owing to the uniquely diversified assets. The company’s strong base of assets and financial position provides enough resources to facilitate extensive research work on health care and pharmaceutical issues.
4 Pages(1000 words)Assignment
FINANCIAL STATEMENT ANALYSIS
A ratio analysis has been conducted using various analytical tools, which are described in the paper. The paper contains a summary of quantitative analysis that include the balance sheet analysis, the analysis of the income statement, the cash flow analysis, the analysis of the operating efficiency, the analysis of ROE, credit and liquidity analysis and the growth expectation.
5 Pages(1250 words)Assignment
Analysis
Two (2) candidates received had results of over 90% representing approximately 14% of the candidates tested and the average score on the quiz was 71.3%. An analysis of the results by test items and based on the difficulty of the items revealed that eight
3 Pages(750 words)Assignment
Item Analysis and Marks
Qualitative item analysis includes a thorough analysis that uses three numerical indicators: item difficulty, item discrimination and distractor power
2 Pages(500 words)Assignment
In tray Item 2
The two main factors that banks consider for granting overdraft limit are Liquidity and Cash Flow. Banks need to be sure that a company has enough liquidity to meet its obligation in the event of a crisis. Cash flow is important because a
2 Pages(500 words)Assignment
Grammatical analysis
This study provides a more lexical autonomy. Considering the sentences below, the comparisons of expressions alongside the grammatical tenses will develop the absolute agreements on
4 Pages(1000 words)Assignment
Financial Analysis
Ratios are expressed in form of a percentage or pure ratio. Ratios are useful because they are used in decision making. One group that uses
2 Pages(500 words)Assignment
Website Analysis
From what was understood, their mission statement is to encourage people to find entertainment and fun in wilderness and nature. Co-ops are business structures which are based on
2 Pages(500 words)Assignment
Let us find you another Assignment on topic Item Analysis for FREE!
+16312120006