Thursday, November 09, 2017

Book memo: more retreat into fiction

My escapism continues with Lee Child's Jack Reacher series: Tripwire, Running Blind and Echo Burning; L.E. Modesitt Jr.'s Saga of Recluce fantasy series: The Magic of Recluse, The Towers of Sunset, The Magic Engineer, The Order War, The Death of Chaos.

Monday, November 06, 2017

Rangoli 2017

Rangoli 2017 - I was absent, but my niece, who is the artist behind this and all previous rangolis, continued the tradition.

Previous years.


Current state of mind

Friday, November 03, 2017

Ashtalakshmis singing Ashtalakshmi Stothram

Ashtalakshmi Stothram.
A translation.


Wednesday, November 01, 2017

Bhagyada Lakshmi Baramma - Sooryagayathri

A composition of Purandara Dasa.
Lyrics and a translation here.




Tuesday, October 31, 2017

Brahmam Okate - Sooryagayathri & Rahul Vellal

Sunday, October 29, 2017

Harivarasanam - Sooryagayathri & Kuldeep M Pai

A Kerala favorite:

Friday, October 27, 2017

More indications that g is a myth

One indication that Spearman's g (upon which IQ is based) is an artifact of positive correlations among various intelligence test measures than a real thing is that there are subpopulations among which these measures do not correlate in the same way as among the general public.

An example is here: (note, my interpretation of their findings):

Psychol Sci. Author manuscript; available in PMC 2015 Jan 8.
Published in final edited form as:
PMCID: PMC4287210
NIHMSID: NIHMS653064

The Level and Nature of Autistic Intelligence


To quote:
For example, no autistic child scored in the “high intelligence” range on the WISC-III, whereas a third of the autistic children scored at or above the 90th percentile on the Raven’s Matrices. Only a minority of the autistic children scored in the “average intelligence” range or higher on the WISC-III, whereas the majority scored at or above the 50th percentile on the Raven’s Matrices. Whereas a third of the autistic children would be called “low functioning” (i.e., in the range of mental retardation) according to the WISC-III, only 5% would be so judged according to the Raven’s Matrices.
In striking contrast to the autistic children, the nonautistic control children did not show a significant difference between their Raven’s Matrices scores and their WISC-III Full Scale, Verbal Scale, or Performance Scale scores .
So, if there was a real thing X corresponding to Spearman's g that represented the intelligence of a human brain, then the general positive correlation in the general population between WISC and Raven's Matrices is not measuring this thing X.  But it is these kinds of positive correlations among the various tests' results that is supposed to be measuring this real thing that is approximated by Spearman's g.

Sri Ramachandra Kripalu - Sooryagayathri