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.

For six years, from 1985 to 1991, I felt pretty weak and useless.

I feel like, whatever movie I was making, there would always be moments of human intimacy and insight into a little bit of what makes us tick as people.

I saw 'Hairspray' at the Pantages in L.A. It came to the Pantages right before I did the movie, and just being in New York sometimes and seeing the marquees and everything like that, I'm like, 'I really, really have to go experience a Broadway play.'

Movies by Carlos Saura and others had ghosts, memories from the past, that they used to make a political point. Things you couldn't talk about openly, you could speak of through ghosts.

History is mostly guessing; the rest is prejudice.

The best lightning rod for your protection is your own spine.

I am not trying to change the world. I am just offering my gift that God gave me, and if somebody is moved by it, that's beautiful.

Crony capitalism is essentially a condition in which... public officials are giving favours to people in the private sector in payment of political favours.

Never get jealous when you see your ex with someone else because our parents taught us to give our used toys to the less fortunate.

Occasionally, we are given a reminder of how precious a gift it is to understand the plan of salvation.

Let's be honest. The powers that be all of a sudden realize that there's a lot of money to be made from the Latino market. It all comes down to economics. That's what's happening. So what! We're in style. I mean, that's silly, but I'm taking full advantage of that.

Everybody I talked to - from my friends to my family and some of the players - really gave me a lot of support from the start. And that certainly made me feel good about trying to come back and be one of the best again.

I just like observing people - it's something I've done ever since I was a kid, and I got really good at it. That's a big part of why I became a comedian. My audience is filled with every kind of person you can imagine, and I love that.

The federal government seeks to control and regulate the Internet, but the last thing this Congress should be doing is trying to stifle public debate online.

But I always wound up being the damn John, when I wanted to be the Paul.

It is injurious to the mind as well as to the body to be always in one place and always surrounded by the same circumstances.

We should all have the opportunity to express what we want to express.

Since There are so many questions about what the president was doing over 30 years ago, what is it that he did after his honorable discharge from the National Guard? Did he make speeches alongside Jane Fonda denouncing America's racist war in Vietnam?

For every life and every act consequence of good and evil can be shown and as in time results of many deeds are blended so good and evil in the end become confounded.

Education is a business - the growth business. It cultivates the growth of our learners, translates the growth of new knowledge, and builds professional growth.

Good access to a doctor and a drugstore when you first have a problem can avoid a lot of cost and heartache later.

When you hear romantic music, it makes you want to take your girl out to dinner or buy her something or take her out in the moonlight or take her on a walk.

I don't want to be known as the granddaughter of the Hiltons. I want to be known as Paris.

I lived in small town out in the desert and my friend used to steal his mom's car in the middle of the night. He'd drive over to my house, I'd sneak out and we'd go out to the desert and just burn things down.