Study Ford et al. (2013): study ZZ Anglo-America 2002

Public

30+ aged, Adventist church atendees, North America 2002-2007

Sample

Respondents

N = 9255

Non Response

45%

Assessment

Questionnaire: Paper & Pencil Interview (PAPI)

Correlate

Authors's Label

Nuts

Our Classification

Remarks

Assessd usung Food Frequency Questionnaire (FFQ), which contains a list of 200 food items. Nuts are: sunflower seeds, walnuts, peanuts, pumpkin seeds, mixed nuts, sesame, almonds, cashews. Intake expressed in standard servings in grams Food intake was energy adjusted using the residual method

Distribution

M = males: 127, females 140

Related specification variables

Operationalization

Selfreported  intake of nuts during the last year
1  never or rarely
2  1-3 times per month
3  1-6  times per week
4  1-4 times per day

Observed Relation with Happiness