Posts Tagged ‘children’s performance tests’

Omega-3 lesson: Not so much brain boost as fishy research

This is a good article highlighting how scientific research gets misrepresented in the media, making it important to go to the original source.  Moreover, often an experiment measures one thing (a surrogate) but makes conclusions that go well beyond what was actually measured. (E.g. high cholesterol levels being used as a surrogate for heart attack risk.) – Ilene 

Omega-3 lesson: Not so much brain boost as fishy research

By Ben Goldacreguardian.co.uk

Fish oil helps schoolchildren to concentrate ran a headline in the Observer. Regular readers will remember the omega-3 fish oil pill issue. The entire British news media has been claiming for several years now that there are trials showing that the pill improves school performance and behaviour in mainstream children, despite the fact that no such trial has ever been published.

There is something very attractive about the idea that solutions to complex problems in education lie in a pill.

[...]

This paper showed no difference in performance at all. Since it was a brain imaging study, not a trial, the results of the children’s actual performance in the attention task was only reported in a single paragraph. But these results were clear: "There were no significant group differences in percentage correct, commission errors, discriminability, or reaction time."

So this is all looking pretty wrong. Are we even talking about the same academic paper? I’ve a long-standing campaign to get mainstream media to link to original academic papers when they write about them, at least online, with some limited success on the BBC website. I asked the writer Campbell which academic paper he was referring to, but he declined to answer, and passed me on the Stephen Pritchard, the readers’ editor for the Observer, who answered a couple of days later to say he did not understand why he was being involved. Eventually Campbell confirmed, but through Pritchard, that it was indeed a paper from the April edition of the American Journal of Clinical Nutrition.

[...]

Similarly, drug reps and researchers will often announce that their intervention has some kind of effect on some kind of elaborate measure of some kind of surrogate outcome: maybe a molecule in the blood goes up in concentration, or down, in a way that suggests the intervention might be effective.

This is all very well. But it’s not the same as showing that something really does actually work back here in


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Phil's Favorites

For the sake of our retirement savings, it's time to reform the investment management boys' club

 

For the sake of our retirement savings, it's time to reform the investment management boys' club

Women in investment management report an “ingrained” culture of sexism. This includes stereotyped views of women being best suited to administrative roles. Shutterstock

Courtesy of Sarah Oxenbridge, University of Sydney and Rae Cooper, University of Sydney

Australians have A$2.6 trillion in superannuation assets. We conducted ...



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Zero Hedge

Tether Tumbles Below Critical $1 Threshold As Dollar-Pegged Crypto Doubts Soar

Courtesy of ZeroHedge. View original post here.

Update: Careful to quickly assuage any potential loss of the narrative and 'full faith and credit' of the 'stablecoin', Tether released a statement on USDT drop:

"We would like to reiterate that although markets have shown temporary fluctuations in price, all USDT in circulation are sufficiently backed by U.S. dollars (USD) and that assets have always exceeded liabilities."

See, nothing to panic about.

*  *  *

The only cryptocurrency not rallying right now is the one pegged to the U.S. dolla...



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Digital Currencies

Tether Tumbles Below Critical $1 Threshold As Dollar-Pegged Crypto Doubts Soar

Courtesy of ZeroHedge. View original post here.

Update: Careful to quickly assuage any potential loss of the narrative and 'full faith and credit' of the 'stablecoin', Tether released a statement on USDT drop:

"We would like to reiterate that although markets have shown temporary fluctuations in price, all USDT in circulation are sufficiently backed by U.S. dollars (USD) and that assets have always exceeded liabilities."

See, nothing to panic about.

*  *  *

The only cryptocurrency not rallying right now is the one pegged to the U.S. dolla...



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Kimble Charting Solutions

Commodities attempting breakout off 7-year support!

Courtesy of Chris Kimble.

CLICK ON CHART TO ENLARGE

Its been a rough 7-years for Agriculture ETF (DBA) as it has created a series of lower highs and lower lows while declining 50% inside of falling channel (1).

The decline this year has it testing channel support of late, where a double bottom might be in play at (2).

The rally of the past couple of weeks has DBA attempting a breakout above falling resistance at (3), while momentum is very low and could be attempting to turn higher.

While DBA is attempting a breakout, yields and Commoditie...



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Chart School

Weekly Market Recap Oct 14, 2018

Courtesy of Blain.

Wednesday and Thursday finally brought some fireworks to a very complacent market.   The S&P 500 had not had a 1% move in 74 days until Wednesday’s drawdown.

Rising yields were nailed as the culprit but months of rallying eventually require some sort of shake out – whatever the catalyst.  Wednesday’s sell off was the worst day for the S&P 500 since February and the worst for the NASDAQ since June 2016.

The market losses are “a reaction from investors finally realizing we are in a higher interest-rate environment, and given the elevated level of stocks, market participants were likely looking for a reason to sell,” said Charlie Ripley, senior investment strategist for Allianz Investment Management. “Higher interest rates typically bring on tighter ...



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Insider Scoop

Carl Icahn Doubles Down On Dell Technologies: 'One Of The Best Opportunities I Have Ever Seen'

Courtesy of Benzinga.

Related Barron's Picks And Pans: Apple, Dell, Netflix, Wells Fargo And More Jim Cramer Gives His Opinion On Mastercard, Dell Tec...

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ValueWalk

Vilas Fund Up 55% In Q3; 3Q18 Letter: A Bull Market In Bearish Forecasts

By Jacob Wolinsky. Originally published at ValueWalk.

The Vilas Fund, LP letter for the third quarter ended September 30, 2018; titled, “A Bull Market in Bearish Forecasts.”

Ever since the financial crisis, there has been a huge fascination with predictions of the next “big crash” right around the next corner. Whether it is Greece, Italy, Chinese debt, the “overvalued” stock market, the Shiller Ratio, Puerto Rico, underfunded pensions in Illinois and New Jersey, the Fed (both for QE a few years ago and now for removing QE), rising interest rates, Federal budget deficits, peaking profit margins, etc...



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Members' Corner

Why obvious lies still make good propaganda

 

This is very good; it's about "firehosing", a type of propaganda, and how it works.

Why obvious lies still make good propaganda

A 2016 report described Russian propaganda as:
• high in volume
• rapid, continuous and repetitive
• having no commitment to objective reality
• lacking consistency

...

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Biotech

Gene-editing technique CRISPR identifies dangerous breast cancer mutations

Reminder: Pharmboy is available to chat with Members, comments are found below each post.

 

Gene-editing technique CRISPR identifies dangerous breast cancer mutations

Breast cancer type 1 (BRCA1) is a human tumor suppressor gene, found in all humans. Its protein, also called by the synonym BRCA1, is responsible for repairing DNA. ibreakstock/Shutterstock.com

By Jay Shendure, University of Washington; Greg Findlay, ...



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Mapping The Market

Mistakes were Made. (And, Yes, by Me.)

Via Jean-Luc:

Famed investor reflecting on his mistakes:

Mistakes were Made. (And, Yes, by Me.)

One that stands out for me:

Instead of focusing on how value factors in general did in identifying attractive stocks, I rushed to proclaim price-to-sales the winner. That was, until it wasn’t. I guess there’s a reason for the proclamation “The king is dead, long live the king” when a monarchy changes hands. As we continued to update the book, price-to-sales was no longer the “best” single value factor, replaced by others, depending upon the time frames examined. I had also become a lot more sophisticated in my analysis—thanks to criticism of my earlier work—and realized that everything, including factors, moves in and out of favor, depending upon the market environment. I also realized...



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OpTrader

Swing trading portfolio - week of September 11th, 2017

Reminder: OpTrader is available to chat with Members, comments are found below each post.

 

This post is for all our live virtual trade ideas and daily comments. Please click on "comments" below to follow our live discussion. All of our current  trades are listed in the spreadsheet below, with entry price (1/2 in and All in), and exit prices (1/3 out, 2/3 out, and All out).

We also indicate our stop, which is most of the time the "5 day moving average". All trades, unless indicated, are front-month ATM options. 

Please feel free to participate in the discussion and ask any questions you might have about this virtual portfolio, by clicking on the "comments" link right below.

To learn more about the swing trading virtual portfolio (strategy, performance, FAQ, etc.), please click here ...



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Promotions

Free eBook - "My Top Strategies for 2017"

 

 

Here's a free ebook for you to check out! 

Phil has a chapter in a newly-released eBook that we think you’ll enjoy.

In My Top Strategies for 2017, Phil's chapter is Secret Santa’s Inflation Hedges for 2017.

This chapter isn’t about risk or leverage. Phil present a few smart, practical ideas you can use as a hedge against inflation as well as hedging strategies designed to assist you in staying ahead of the markets.

Some other great content in this free eBook includes:

 

·       How 2017 Will Affect Oil, the US Dollar and the European Union

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All About Trends

Mid-Day Update

Reminder: Harlan is available to chat with Members, comments are found below each post.

Click here for the full report.




To learn more, sign up for David's free newsletter and receive the free report from All About Trends - "How To Outperform 90% Of Wall Street With Just $500 A Week." Tell David PSW sent you. - Ilene...

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About Phil:

Philip R. Davis is a founder Phil's Stock World, a stock and options trading site that teaches the art of options trading to newcomers and devises advanced strategies for expert traders...

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About Ilene:

Ilene is editor and affiliate program coordinator for PSW. She manages the site market shadows, archives, more. Contact Ilene to learn about our affiliate and content sharing programs.

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