Hello,

I'm planning on conducting a piece of research on whether providing information in an argument map can reduce the decoy effect in consumers

I have 3 groups at the start; people who will have information about consumer choices in an argument map or piece of text and a group where there is no information provided to them at the start.

All groups will then continue into the next stage of the experiment where they will be shown 3 different item set:

• · Low value/ low quantity, high value/ high quantity
• · Low value/ low quantity, medium value/ medium quantity, high value/ high quantity
• · Low value/ low quantity, decoy high value/ medium quantity, high value/ high quantity

my hypothesis is that individuals who were provided information about their consumer choices in an argument map are significantly less likely to pick the high value/ high quantity item in the third item set where there is a decoy item

This was my plan for analysis

Analysis

·Will compare the amount in each condition the amount of times participants picked the target item

· Argument map: 2 items, 3 items normal, 3 items, decoy

· Piece of text: 2 items, 3 items normal, 3 items decoy

· Control: 2 item, 3 items normal, 3 items decoy

Use Kruskal-wallis test to compare the amount of times the target gets picked in the groups – see if there is a significant difference between each group

· 2 items: argument map, piece of text and control

· 3 items normal: argument map, piece of text and control

· 3 items decoy: argument map, piece of text and control

Compare the target item in the decoy set – argument map vs nothing AND argument map vs piece of text

Follow up results with Mann-Whitney U test

I just wanted to make sure that this would be the correct type of analysis to use in my study

thank you!