Dictionary » N » Null

Null

null

1. Something that has no force or meaning.

2. That which has no value; a cipher; zero.

(Science: physics) Null method, a zero method. See Zero.


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Hypothesis

well, what was your null hypothesis?

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by MrMistery
Sat Apr 18, 2009 9:39 pm
 
Forum: General Discussion
Topic: Hypothesis
Replies: 1
Views: 284

Hypothesis

I have conducted an experiment using spearmans rank. since my critical value was greater then my resulting ''rs'' number, i have to accept the null hypothesis. Does this mean i have to totally reject my hypothesis, and cant comment on any biological information to support it?

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by red.ninja13
Sat Apr 11, 2009 12:59 pm
 
Forum: General Discussion
Topic: Hypothesis
Replies: 1
Views: 284

Re: resistance

... apature too small, you get a higher resistance (lower conductance) than you want. I’m not sure, but I think the measurement goes someting like a null potentiometer; you apply a voltage across the membrane that opposes the normal voltage gradient until the current becomes zero. The potential at ...

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by blcr11
Wed Nov 12, 2008 8:43 pm
 
Forum: General Discussion
Topic: resistance
Replies: 3
Views: 524

Brain size=IQ level theory (Blacks vs Whites & Asians)

... objectivity in the review. As for the last post, I will just point out that the conclusion is BS, and show limited grasp of statistics. The null hypothesis does not need to be supported, it can only be proved wrong, but if your data are not significant, it implies that the null hypothesis ...

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by canalon
Fri May 16, 2008 3:17 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 18
Views: 12458

Brain size=IQ level theory (Blacks vs Whites & Asians)

... 1,355 cm 3 ) and (nonsignificantly) larger crania than White enlisted personnel (1,369 vs. 1,366 cm3). Almost any confirmed hypothesis can be made null if one selects subsets of data. We do not believe such an ap30 RUSHTON AND ANKNEY proach is useful for making progress in science. Identifying ...

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by TJJ
Fri May 16, 2008 12:17 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 18
Views: 12458
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