Is intelligence directly proportional to brain size?

I have another excuse to post a new topic. Got an interesting article about smart people having bigger brains. I don't want to paraphrase it, heck it would eat much of my time. To cut the drama short, read on or better yet check out this link: http://www.vcu.edu/uns/Releases/2005/june/061705.html.

According to a study conducted by a Virginia Commonwealth University researcher published in the journal "Intelligence," people with bigger brains are smarter than their smaller-bained counterparts. The study could settle a long-standing scientific debate about the relationship between brain size and intelligence. Ever since German anatomist and physiologist Frederick Tiedmann wrote in 1836 that there exists "an indisputable connection between the size of the brain and the mental energy displayed by the individual man," scientists have been searching for biological evidence to prove his claim.

The study is the most comprehensive of its kind, drawing conclusions from 26 previous - mostly recent - international studies involving brain volume and intelligence. It was only five years ago, with the increased use of MRI-based brain assessments, that more data relating to brain volume and intelligence became available. Michael A. McDaniel, Ph.D., a professor in management in VCU's School of Business, found that, on average, intelligence increases with increasing brain volume. Intelligence was measured with standardized intelligence tests, which have important consequences on peoples' lives, such as where they'll go to college or what kind of job they get.

As an industrial and organizational psychologist, McDaniel works with employers to screen job applicants and measure their performance. He said employers will appreciate his findings because intelligence tests are the single best predictor of job performance. On average, smarter people learn quicker, make fewer errors, and are more productive.

It isn't true that because I posted this article, it implies that I have a bigger brain. Duh.