Aims Varibles And Hypothsis

Question 1

What does the alternative hypothesis in an experiment state?

Answer 1

There will be an effect of the IV on the DV

Question 2

A clean smell?

The aroma of freshly baked bread,
the smell of newly ground coffee and the scent of a nice fragrance. We associate different smells with different people and situations, and our sense of smell can even influence how we behave. Sometimes this can be immediate and direct, such as making us feel hungry, but it can also be more indirect. For example, the smell of lemons is often associated with cleanliness. To study this further, psychologists want to use the experimental method to investigate if people leave less litter in a room filled with the smell of lemons compared to one that smells of nothing.

Write a one tailed alternate hypothesis for this study.

3 marks

Answer 2

For example:
There will be less pieces of litter left in a room (waste paper, food packets etc) when the room smells of lemons compared to a room that smells of nothing.

Question 3

Give an example on how you would operationalise the dependant variable to obtain quantitive data for a required factor.

Study related to an experiment on litter in room of lemons vs room smells of nothing.

Answer 3

I would operationalise the DV of litter by counting the number of pieces left in both room (lemon or no lemon) and use a tally chart to generate quant data.

Question 4

Write a one tailed alternative hypothesis for this study
3 marks

The study :
Psychologists have investigated many ways that could improve how children learn. However, most of these have concentrated on studying the effect of different teaching styles, rather than focusing on the child themself. A psychologist taking a more child-focused approach wants to study if being more relaxed affects concentration levels. They want to investigate if young children can concentrate better when wearing comfortable sippers on their feet compared to wearing shoes.
The study is to be conducted in one large primary school with 240 children on the register.

Answer 4

Children will have better concentration (measured by spot the difference puzzle out of 20) when wearing slippers compared to wearing shoes,

Context - concentration, slippers, shoes, learning, primary school children etc

Tail can be in either direction (predicting better concentration when wearing slippers or predicting worse concentration when wearing slippers )