Preregistration: Pilot Feasibility Study of Progressive Constructions in Dutch and German Football Coaches' L1 and L2 Interviews

This is the preregistration of a pilot study, registered before any data were accessed. The pilot assesses the feasibility of a planned corpus study of present tense progressive constructions in Dutch and German, used by football coaches in their first language (L1) and second language (L2). The pilot samples one Dutch coach working in Germany and one German coach working in the Netherlands, with one publicly broadcast interview per speaker in each language. It estimates the number of eligible speakers, token yield per interview, intracoder reliability and transcription and coding workload. These estimates inform a power simulation and the sample size of the main study. The pilot tests no hypotheses, and progressive rates are not compared between L1 and L2 speakers. Decision criteria for proceeding to the main study are specified in the preregistration. The main study’s preregistration is linked under Related works.