Experimental Design B/C

[TheChiScientist]

Chemistry is quite rare but I have done some relating to PH and density...
Hardest one I ever got was one with rotational kinematics.

[Jacobi]

Here's a link to a list of practice prompts:

[wiki]Experimental Design/Practice[/wiki]

[dxu46]

Here's a link to a list of practice prompts:

[wiki]Experimental Design/Practice[/wiki]

Note: Don't use the examples with no topic.

[Anomaly]

What does the rubric mean in the quantitative data section where it says "Report most relevant data"?

Making a presentation on expd for middle schoolers and I come across that and have no idea what it means.

[dxu46]

What does the rubric mean in the quantitative data section where it says "Report most relevant data"?

Making a presentation on expd for middle schoolers and I come across that and have no idea what it means.

That's the condensed data table with important data such as averages.

[Anomaly]

What does the rubric mean in the quantitative data section where it says "Report most relevant data"?

Making a presentation on expd for middle schoolers and I come across that and have no idea what it means.

That's the condensed data table with important data such as averages.

ah alright that makes sense thanks

[Jacobi]

What does the rubric mean in the quantitative data section where it says "Report most relevant data"?

Making a presentation on expd for middle schoolers and I come across that and have no idea what it means.

I think it means that you should report data that is relevant to the hypothesis.

For example, if you're doing an XP with ball drop height v. drop time, you wouldn't report bounce height.

[pal_420]

What do the rules mean by age-appropriate statistic? Does this mean we can't have more complex stuff like ANOVA?

[Jacobi]

What do the rules mean by age-appropriate statistic? Does this mean we can't have more complex stuff like ANOVA?

I think it means that you shouldn't be doing mode or range for Division C.
Who knows? You might want Pearson Correlation.

Also, how would ANOVA even apply to XPD data?

[nicholasmaurer]

What do the rules mean by age-appropriate statistic? Does this mean we can't have more complex stuff like ANOVA?

I think it means that you shouldn't be doing mode or range for Division C.
Who knows? You might want Pearson Correlation.

Also, how would ANOVA even apply to XPD data?

Many proctors will be unfamiliar with ANOVA, so I would not recommend using it for your statistical analysis. It is certainly not necessary to do so.

At the Division C level, I would generally recommend you choose either Pearson's correlation coefficient (r and r^2) or Student's t-test. These will cover almost every scenario and are easy to calculate using a graphing calculator. It is important that you understand and interpret the meaning of the results, rather than simply reporting them.

Mean and standard deviation will almost always be the best measures of center and spread to report. Occasionally, median might be preferred, but you're unlikely to have a sufficient sample size to know if your data is skewed.