In this study, the term "conspecific" means ...

• researcher

• chimpanzee

• parrot

• helper

Which three cores studies related to this study from Yamamoto et al?

• Baron-Cohen et al (eyes test)

• Pepperberg (parrot learning)

• Piliavin et al (subway Samaritan)

• Canli et al (brain scans and emotions)

• Andrade (doodling)

Yamamoto et al presented the data in the form of ...

• bar chart

• histogram

• scatter graph

The graph shows that chimpanzees are more accurate with targeted helping in ... condition

• can see

• can't see

Which condition produced most "No offer" occurence?

• Can see - Stick required

• Can see - Straw required

• Can't see - Stick required

• Can't see - Straw required

... behavior means helping others without direct benefit to oneself.

The ... condition facilitates chimpanzee's Theory of Mind ability.

• stick

• straw

• can see

• can't see

The chosen experimental design has positive impact on the validity by ...

• reducing participants' variables

• reducing order effects

• making it replicable

• improving ecological validity

Chimpanzees' helping behavior suggest altruism because ...

• helpers didn't get the juice

• personal relationship between pairs

• it was targeted helping

• helpers can't see what tool was needed

After doing both conditions, chimpanzees are put to can see condition once more. Why was this necessary?

• to reduce fatigue effect

• to reduce practice effect

• to reduce participants' variables

• to improve generalisability