1 Demo Version of Experiment

To see a demo of the experiment in a separate browser window, click here.

To download the program files of the experiment, click here.

2 Data

2.1 Data set information

The data set contains the following columns:

  • subj_code: a random subject ID (anonymous)
  • condition: a variable indicating the different between-subjects conditions
  • desktop_conf: subjects’ confirmation of taking part via PC or Laptop
  • attent_conf: subjects’ confirmation to pay attention
  • scale_orient: counterbalancing factor coding the orientation of the rating scale
  • dv_query: condition variable coding whether subjects were asked a probability or satisfaction query
  • instr_tests: variable coding the number of comprehension tests attempts undertaken by a subject
  • DV_rating: subjects’ selection in the test phase (main dV); 0 means narrow scope explanation if scale orientation is “narrow left”
  • explanation: subjects’ explanation of their rating
  • age: subjects’ age in year
  • gender: subjects’ gender
  • tech_issues: subjects’ report of potential technical problems
  • rating_rec: recoded values of DV_rating so that negative values indicate narrow-scope preferences

4 Analysis of subjects’ explanations

Note: A .csv file containing all subject explanations is included in the folder that come with the R-Markdown code download.

5 Study Planning

The study was planned in R using the “pwr.t.test” function from the “pwr” package.

2023 Simon Stephan.