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iRubric: Chi-Squared Assessment rubric

iRubric: Chi-Squared Assessment rubric

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Chi-Squared Assessment 
This rubric will be filled out 3 times. Once for each study.
Rubric Code: P2X4WB2
By nvanepps
Ready to use
Private Rubric
Subject: Math  
Type: Assessment  
Grade Levels: (none)

Powered by iRubric Chi-Squared Assessment
  Initial Understanding

(N/A)

Approaching Understanding

(N/A)

Competent Understanding

(N/A)

Study design

Initial Understanding

The study is not well designed.
It is missing more than one conditions and assumption and/or does not address the question being set forth. This includes getting counted data, an element of randomization, and a large enough sample.

There is not nearly enough detail that someone else could replicate the study with one or two questions.
Approaching Understanding

The study is mostly well designed.

It will meet all but one of the conditions and assumptions as well as address the question being set forth. This includes getting counted data, an element of randomization, and a large enough sample.

There is enough detail that someone else could replicate the study with one or two questions.
Competent Understanding

The study is well designed.

It will meet all of the conditions and assumptions as well as address the question being set forth. This includes getting counted data, an element of randomization, and a large enough sample.

There is enough detail that someone else could replicate the study.
Null and alternate hypotheses

Initial Understanding

Less than two of these three items are met.

The null and alternate hypotheses are written accurately for the situation.

The hypotheses are for the correct Chi-Squared test.

Correct notation is used.
Approaching Understanding

Two of these three items must be met.

The null and alternate hypotheses are written accurately for the situation.

The hypotheses are for the correct Chi-Squared test.

Correct notation is used.
Competent Understanding

All three of these items must be met.

The null and alternate hypotheses are written accurately for the situation.

The hypotheses are for the correct Chi-Squared test.

Correct notation is used.
Data Collection

Initial Understanding

Less than two of these three items are met.

The data is collected as described in the study design.

The data is organized in some way so that it can be understood.

The data is presented with correct notation when necessary.
Approaching Understanding

Two of these three items must be met.

The data is collected as described in the study design.

The data is organized in some way so that it can be understood.

The data is presented with correct notation when necessary.
Competent Understanding

All three of these items must be met.

The data is collected as described in the study design.

The data is organized in some way so that it can be understood.

The data is presented with correct notation when necessary.
Chi-Squared Procedure Chosen and Explanation

Initial Understanding

An incorrect procedure is chosen and is justified incorrectly.

example justifications
Goodness-of-fit: 1 sample, 1 variable
Independence: 1 sample, 2 variables
Homogeneity: 2 samples, 1 variable
Approaching Understanding

The correct procedure is chosen or the incorrect procedure is justified correctly.

example justifications
Goodness-of-fit: 1 sample, 1 variable
Independence: 1 sample, 2 variables
Homogeneity: 2 samples, 1 variable
Competent Understanding

The correct procedure is chosen and is justified correctly.

example justifications
Goodness-of-fit: 1 sample, 1 variable
Independence: 1 sample, 2 variables
Homogeneity: 2 samples, 1 variable
Conditions and Assumptions

Initial Understanding

Less than three of the four correct assumptions and Three of the four correct assumptions and conditions are met and identified.conditions are met and identified.

There is a random sampling method
Independence
The data is counted data
Each expected value cell is greater than or equal to 5
Approaching Understanding

Three of the four correct assumptions and conditions are met and identified.

There is a random sampling method
Independence
The data is counted data
Each expected value cell is greater than or equal to 5
Competent Understanding

All four of the correct assumptions and conditions are met and identified.

There is a random sampling method
Independence
The data is counted data
Each expected value cell is greater than or equal to 5
Test Procedure

Initial Understanding

The Chi-Squared test is done correctly for less than three of the four elements.


The expected table is accurate.

The Chi-Squared statistic is accurate.

The p-value is accurate with a corresponding picture drawn.

Enough work is shown to follow along.
Approaching Understanding

The Chi-Squared test is done correctly for three of the four elements.

The expected table is accurate.

The Chi-Squared statistic is accurate.

The p-value is accurate with a corresponding picture drawn.

Enough work is shown to follow along.
Competent Understanding

The Chi-Squared test is done correctly for all four elements.

The expected table is accurate.

The Chi-Squared statistic is accurate.

The p-value is accurate with a corresponding picture drawn.

Enough work is shown to follow along.
Conclusion

Initial Understanding

Less than two of these three items are met.

The p-value is interpreted correctly in comparison to the alpha level.

The correct hypothesis is addressed.

The conclusion includes the context of the question being answered.
Approaching Understanding

Two of these three items must be met.

The p-value is interpreted correctly in comparison to the alpha level.

The correct hypothesis is addressed.

The conclusion includes the context of the question being answered.
Competent Understanding

All three of these items must be met.

The p-value is interpreted correctly in comparison to the alpha level.

The correct hypothesis is addressed.

The conclusion includes the context of the question being answered.




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