Sample size The number of samples in the investigation, e.g. the number of people in a drug trial

Model A simplified picture of what's physically going on.

Prediction/Hypothesis A specific testable statement, based on a theory, about what will happen in a test situation.

Peer Review Where a scientific report is sent out to peers (other scientists) who examine the data and results, and if they think that the conclusion is reasonable it's published.

Variable A quantity that has the potential to change, e.g. weight, temperature, concentration.

Prediction/Hypothesis A specific testable statement, based on a theory, about what will happen in a test situation

Precise Result A result that is really close to the mean.

Random Error A difference in measurement caused by an unpredictable factor, e.g. human error.

Repeatable Result A Result that can be repeated by the same person using the same method and equipment.

Reproducible Result A result that can be consistently reproduced in an independent experiment.

Valid Conclusion A conclusion that answers the original question.

Accurate Result A result that is really close to the true answer.

Variable A quantity that has the potential to change, e.g. weight, temperature, concentration.

Independent Variable The variable you change in an experiment.

Dependent Variable The variable you measure in an experiment.

Control Group A group in a study that is treated in exactly the same way as the experimental group, apart from the factor you're investigating.

Placebo A dummy pill or injection that looks exactly like the real drug, but doesn't contain the drug.

I knew that I wanted to meet girls, so I joined a fraternity, and I did yoga.

The thrill of doing visual effects doesn't exist.

There are very few issues that lie specifically in one region now. Polio in Syria doesn't affect Syria alone. I don't think any issue can ever be isolated into local politics these days, because we all know too much.

I get nervous when I don't get nervous. If I'm nervous I know I'm going to have a good show.

I don't know that I'm not normal, because usually, when I tell people the things I do, either their jaw drops or they look at me shocked, but I'm sure I do normal things - everyone eats, that kind of stuff.

I definitely want to study film. I'd like to have my own studio one day and just make a lot of movies.

Obama has been well-received on the world stage, but that doesn't help him operate domestically.

Poetry is a form of necessary speech... I have sought to restore the aura of sacred practice that accompanies true poetic creation, to honor both the rational and the irrational elements of poetry.

The only way to be content in life is to make sure your NEED don't become GREED.

I really like photography, and I'd like to do more of that kind of thing. If I had to choose a different job within the industry and do it well, I would love to do cinematography.

Buzz is not what I am looking for.

My work is all about adventure and teamwork in some of the most inhospitable jungles, mountains and deserts on the planet. If you aren't able to look after yourself and each other, then people die.

Twin-sister of Religion, Selfishness.

Whatever one wants to say about the conduct of the Iraq War, going to war to remove Saddam Hussein in 2003 was a necessary act. It should and could have been done earlier, had not the Clinton White House, which understood the need, not wasted the opportunity through timidity and bluster.

In Congress, I am a strong supporter of the New Apollo Energy Act. This plan would help to establish our energy independence, create jobs, and provide cleaner, reliable, and more affordable energy.

There's something about southern women that is so unique yet so universal. Strong southern women are allowed to be soft and feminine and have a sense of humor. But what I love about southern women in particular is their universality.

I'm very competitive by nature. And I like to be the underdog - It's the best way to win. To come from behind and win is a great feeling!

I've never met anybody in this world like me.

I have always focused on basic research, motivated by a desire to understand the world.

I played without fear. I've done that since I first kicked a ball in my back garden as a five-year-old, whether it's been my first game, my 100th game, or my 500th game.

A lot of young directors, they're not confident; they're not open to the emotional level of the scene.

I am stricken with the peculiar curse of being a 21st-century woman who makes more than the man she's living with - first with a husband for 13 years and now with a new partner.

I don't really like filling my brain with a lot of stuff.

If you wish to avoid seeing a fool you must first break your looking glass.