Psychology - mixed questions

State a possible alternative hypothesis for an experiment that aims to study the effect of background noise levels on stress.

If noise has an effect on stress, then people who complete a task in a noisy environment will score higher on a measure of stress than people who complete the task in a quiet environment.

Explain the role of rehearsal in memory, according to the multi-store model.

It has two main roles: it maintains information in STM and encodes it into LTM.

Besides the eye, name one other body area involved in the perception of bison and explain what it does.

The brain/ visual cortex; this builds up an image of the world by combining information from a network of receptor cells and integrating it with memories/ assumptions.

Briefly explain the interview and survey methods of research. [4]

Both are non-experimental methods which involve asking questions to participants [1]. Interview is done face-to-face; surveys via paper or on screen [1]. Both could use two types of question, but interviews tend to feature open questions and surveys closed questions [1]. Interviews allow follow-up questions, whereas the advantage of surveys is that they are private, so could prompt a higher level of honesty in responses [1].