予よ備び研けん究きゅう

noun

pilot study; preliminary study

A small-scale preliminary investigation conducted before a full-scale research project, often to test feasibility or refine methods.

• 本ほん格かく的てきな調ちょう査さの前まえに、予よ備び研けん究きゅうを行おこなった。

  We conducted a pilot study before the full-scale investigation.