How Often Do I Agree: an Experimental Test of Item Format Method Variance in Stress Measures

Three studies experimentally investigated response formats of agreement (A) and frequency (F) to determine their effect on correlations between often used measures of job stressors and strains. Study 1 used a within-subject design where respondents were given two sets of the same 6 stressor measures that varied in A versus F formats, as well as measures of 6 strains. Study 2 replicated Study 1 using a between-subject design where each respondent...