AQA A Level Biology

How would you work out the answer please?

Effect size is calculated in the following way.
1. Divide the species richness in the last year of an investigation (SR2) by species
richness in the first year of the investigation (SR1).
2. Find the natural log (loge) of the result.
3. Divide this by the time (T) between the first and last year in decades (1 decade =
10 years).
In one community:
• species richness in year 2 (SR2) was 15.3
• species richness in year 1 (SR1) was 18.2
• and the investigation lasted for 29 years.
Use loge, SR2, SR1 and T to write an equation for ‘effect size’ and calculate its value for this investigation. On a calculator, the key for loge is shown as ln, or loge.

Reply 1

anon25x

The answer I got is -0.026 but on the mark scheme it says it should be – 0.0599

Reply 2

BlueChicken

Original post by anon25x

The answer I got is -0.026 but on the mark scheme it says it should be – 0.0599

I think you have used log (i.e. log₁₀), not log_e, i.e. natural log, ln

Reply 3

aaronfyfyf1

Can someone please post the scoring Hull York used last year to score GCSEs UCAT and contextual for last year and the cutoff points for an offer? Thank you