# PSYCH291 Lecture Notes - Agreeableness

Topics for complex

true experimental designs

*Within-Ss designs

*Factorial designs

*Effects in factorial designs

*Main effects

*Interactions

*Types of interactions

*Recognizing interactions

*In graphs

*In text

*Can have combinations of main effects and interactions

*But an interaction always implies that any main effect is moderated/qualified

Ratings of Manager’s Skill as a Function of Feedback Favourability and

Manager’s Gender

Types of Interactions

*Two PVs can interact in a variety of ways

*The important thing here is:

*To understand the ways that two variables can work together to produce

psychological outcomes

*To understand the logic behind the various interaction types

*not to memorize the names

*Terminative

*Catalytic

*Synergistic

*Fan

*Crossover

Example of types of effects with 2 PVs

*Made-up example:

*DV = romantic attraction

*2 PVs

*PV = charisma

*PV = similarity in important attitudes and values

*We’ll arbitrarily label the PVs “A” and “B”

## Document Summary

*can have combinations of main effects and interactions. *but an interaction always implies that any main effect is moderated/qualified. *two pvs can interact in a variety of ways. *to understand the ways that two variables can work together to produce psychological outcomes. *to understand the logic behind the various interaction types. Example of types of effects with 2 pvs. *pv = similarity in important attitudes and values. *we"ll arbitrarily label the pvs a and b . Happiness as a function of chocolate condition and time. *dv = state self-esteem (self-esteem at this moment) Wood et al. (2009) effects of positive self-statements. *iv = helping other person or helping self. Cortes & kamrath agreeableness and helping self or other. Ratings of manager"s skill as a function of feedback favourability and. *the effect of one pv does not depend on the level of a second pv. *the effect of a is the same for each condition (aka level) of b.