1. What are good next studies to run?*
If it doesn’t work, but you believe in your theory, think about ways to change your experiment
Draw upon what you are hearing from participants and initial examinations of the data

2. What are good next studies to run?*
If it does work…
1. Eliminating alternative explanations
e.g., jam study and potential self-selection
2. Broadening beyond one manipulation or dv
e.g., jam -> extra credit assignment
3. Demonstrating why it is important (behaviorally)
e.g., 401k

3. What are good next studies to run?*
4. Understanding the process (start with a theory)
a. Finding a moderator of the effect – what turns the effect off
e.g., giving people sugar
e.g. of theory: greater # require more cognitive resources -> people get tired and go somewhere else

4. What are good next studies to run?*
b. Identifying a subset of people for whom the effect is different
e.g., people who are used to making a lot of choices?
c. Finding a mediating variable
e.g., measure resource depletion and see if that mediates the link between # of choices and purchasing behavior
e.g. of theory: greater # require more cognitive resources -> people get tired and go somewhere else

5. Randomizing conditions*
Enter conditions (e.g., 1, 1, 1, 2, 2, 2)
Enter =RAND() in the top cell to the right
Drag the formula down
Copy the entire rand column and paste values (paste special) over itself
Highlight the condition and rand column and sort

6. Creating a data template*
Creating a data template in Excel
Variable names across the top
Subject #s down Column A
One subject per row
Freezing panes
Entering logsheet separately from data template

7. Excel formulas*
Predefined syntax that allows you to automate repetitive calculations and tasks
Two components:
Arguments: what you enter in (e.g., cell references, numbers)
Syntax: text and punctuation predetermined by Excel
Over 350 formulas in 10 categories:
Database, Date and Time, Engineering, Financial, Information, Logical, Lookup, Math, Text and Data, and Statistical functions

8. Excel formulas* List of Excel formulas & what they do:

9. Excel formula example: IF*
IF allows you to enact different outcomes depending on what is in a cell = IF(logic test, value if true, value if false)

10. Excel formula example: IF*

11. Excel formula example: IF*

12. Excel formula example: IF*
Nested IFs = IF(logic test, value if true, value if false) = IF(logic test #1, value if true, IF(logic test#2), value if true, value if false)

13. VLOOKUP* 1. Select the cell where you want to insert the function (J2)
2. Click insert function (fx)

14. VLOOKUP*
Merging logsheet and datasheet using VLOOKUP

15. Absolute and relative cell references*
By default, cell references are relative: They shift when they are copied
Sometimes you want an absolute cell reference, which stays the same
Use a $ in front of the letter and/or number
=VLOOKUP($A2,logsheet!$A$1:$E$6,2,FALSE)

16. VLOOKUP* Fill in other logsheet columns by changing col_index_num
=VLOOKUP($A2,logsheet!$A$1:$E$6,3,FALSE)
Format cells
Prepping for SPSS:
Creating new tab with “toSPSS” name
Pasting values
Eliminating extraneous text

17. Pivot tables* Select the data
Data > PivotTable and PivotChart Report
Select Microsoft Excel list or database and PivotTable
Click Next.

18. Pivot tables Range: Select the cells with the relevant data
Select New worksheet

19. Pivot tables
Drag variable names to row Drag other variable name to column Can use page, if three independent variables It’s okay to use a bit of trial and error