| Co-investigator | Mark Chekola, Steven Bolduc. Data entry by Joop Mulder |
| University | Minnesota State University, Moorhead, USAy |
| Respondents | Economy students, N = 17; 21 questionnaires of which 4 unusable |
| Respondent codes | n.a. |
| Calibrated items | case 1: O-HL-g-sq-v-3-f |
| case 2: O-HL-c-sq-v-4-f | |
| case 3: O-HL-c-sq-v-3-aa | |
| case 4: O-HL-g-sq-v-7-a | |
| case 5: O-HL-c-sq-v-5-e | |
| case 6: O-HL-c-sq-v-3-ab | |
| case 7: O-HL-u-sq-v-4-a | |
| case 8: O-SLu-c-sq-v-5-a | |
| case 9: O-HL-g-sq-v-3-j | |
| case 10: O-SLL-u-sq-v-4-b | |
| Questionnaire | english1questionaire |
| Data file | |
| Remarks | pilot on paper |