## Variables ## - Independent variables: temperature (warm vs. cold) - Mediator: need for affiliation - Dependent variables: attractiveness house, quality house and communality house ---------- ## Procedure Pilot Study 2 ## - Warm condition: Residents held a warm cup for 30 seconds and will be asked to fill in a short questionnaire for a consumer test about that cup. They are also asked to fill in a questionnaire about need for affiliation and their homes. - Cold condition: Residents held a cold cup for 30 seconds and will be asked to fill in a short questionnaire for a consumer test about that cup.They were also asked to fill in a questionnaire about need for affiliation and their homes. ---------- ## Power Analyses (conducted with G*Power) ## - We based the power analyses on the effect sizes from the original study of IJzerman (2013) - Independent samples t-test (two-tailed) - Effect size (cohen’s d): 0.37567 - Power (β): 0.80 - Alpha (α): 0.05 - Allocation ratio N2/N1: 1 - We calculated a sample size of 226. After collecting data of 113 participants, data was analysed to see if the effect size is sufficient. After this, we decided to adjust the study. ---------- ## Questionnaires ## - Questionnaire consumer research cup - Questionnaire need for affiliation - Questionnaire house Note: on March 3rd the information letter and house questionnaire were edited and newly uploaded, before we began the data collection. Edit information letter: information about the questionnaires was included. Edit questionnaire: question about ethnicity was included.