[asaaal]

Why would you do an investigation over a large scale?

Why would you carry an investigation out with people from different areas?

How do you treat your control group?

Many thanks in advance

[Booyah]

Control = Exactly the same but with a placebo

Remember that experiments need to be flawless and to do this they need to get data from a WIDE area of ethnicities, poor; rich; middle class etc.

[gumball]

What do you want us to do? Reword the questions?

Is this for a questionnaire or something?

[stylishguy_]

how do you treat with people from different areas?
why would you do investigation over you control group?
why would you carry an investigation over a large scale?

[asaaal]

(Original post by gumball)
What do you want us to do? Reword the questions?

Is this for a questionnaire or something?

nope its 3 questions my teacher put on the board which i dont know how to answer with 'biological' terms and how to explain why :-(

[asaaal]

(Original post by Booyah)
Control = Exactly the same but with a placebo

Remember that experiments need to be flawless and to do this they need to get data from a WIDE area of ethnicities, poor; rich; middle class etc.

thanks for the control reply . But how to i word the other 2 in a sentence using biological terms and reasons :-(?

[rainbowbex]

have you tried google?

[Jhyzone]

Guys, this might be for a practical assessment and must not be given DIRECT answers.
Just a reminder.

[VaVe]

Using a large number of values will mean that outliers have less of an impact on overall outcome of any statistical tests that you do.