PIAAC - Numeracy and Language??????????

I keep trying to crack this data explorer.  It is taking me about 20-30 minutes to get one graph out.  Half the problem is knowing all the possible variables.

I am surprised at the significance for this question/

Those who reported more than one language and numeracy results. 

Organization for Economic Cooperation and Development (OECD)

Program for the International Assessment of Adult Competencies (PIAAC)

This report was generated using the PIAAC International Data Explorer.

 http://piaacdataexplorer.oecd.org

Report 4: Table

Averages for numeracy, age by Background - More than one language mentioned [JN05A2], year and jurisdiction: PIAAC 2012

Year/Study	Jurisdiction	Yes		No
		Average	Standard Error	Average	Standard Error
NOTE: The Numeracy scale ranges from 0 to 500. Some apparent differences between estimates may not be statistically significant. SOURCE: Organization for Economic Cooperation and Development (OECD), Program for the International Assessment of Adult Competencies (PIAAC), 2012.
PIAAC 2012	OECD Average	257	(0.9)	269	(0.2)
	Selected countries	237	(5.1)	254	(1.2)
	United States	237	(5.1)	254	(1.2)

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Report 4: Sig Test 1

Numeracy, age
Difference in averages between variables - independent test, for Background - More than one language mentioned [JN05A2]
OECD Average, PIAAC 2012

	Yes (257)	No (269)
Yes (257)		< Diff = -12 P-value = 0.0000
No (269)	> Diff = 12 P-value = 0.0000
LEGEND:
<	Significantly lower.
>	Significantly higher.
x	No significant difference.
NOTE: Within country comparisons on any given year are dependent with an alpha level of 0.05.

Averages for numeracy, age by Background - More than one language mentioned [JN05A2], year and jurisdiction: PIAAC 2012 Year/Study Jurisdiction Yes Average Yes Standard error No Average No Standard error NOTE: The Numeracy scale ranges from 0 to 500. Some apparent differences between estimates may not be statistically significant. SOURCE: Organization for Economic Cooperation and Development (OECD), Program for the International Assessment of Adult Competencies (PIAAC), 2012. PIAAC 2012 OECD Average 257 (0.9) 269 (0.2)

Numeracy, age
Difference in averages between variables - independent test, for Background - More than one language mentioned [JN05A2]
Selected countries, PIAAC 2012

	Yes (237)	No (254)
Yes (237)		< Diff = -17 P-value = 0.0016
No (254)	> Diff = 17 P-value = 0.0016
LEGEND:
<	Significantly lower.
>	Significantly higher.
x	No significant difference.
NOTE: Within country comparisons on any given year are dependent with an alpha level of 0.05.

Averages for numeracy, age by Background - More than one language mentioned [JN05A2], year and jurisdiction: PIAAC 2012 Year/Study Jurisdiction Yes Average Yes Standard error No Average No Standard error NOTE: The Numeracy scale ranges from 0 to 500. Some apparent differences between estimates may not be statistically significant. SOURCE: Organization for Economic Cooperation and Development (OECD), Program for the International Assessment of Adult Competencies (PIAAC), 2012. PIAAC 2012 Selected countries 237 (5.1) 254 (1.2)

Numeracy, age
Difference in averages between variables - dependent test, for Background - More than one language mentioned [JN05A2]
United States, PIAAC 2012

	Yes (237)	No (254)
Yes (237)		< Diff = -17 P-value = 0.0026
No (254)	> Diff = 17 P-value = 0.0026
LEGEND:
<	Significantly lower.
>	Significantly higher.
x	No significant difference.
NOTE: Within country comparisons on any given year are dependent with an alpha level of 0.05.

Averages for numeracy, age by Background - More than one language mentioned [JN05A2], year and jurisdiction: PIAAC 2012 Year/Study Jurisdiction Yes Average Yes Standard error No Average No Standard error NOTE: The Numeracy scale ranges from 0 to 500. Some apparent differences between estimates may not be statistically significant. SOURCE: Organization for Economic Cooperation and Development (OECD), Program for the International Assessment of Adult Competencies (PIAAC), 2012. PIAAC 2012 United States 237 (5.1) 254 (1.2)

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Report 4: Chart 1