In a prediction model generating apparatus 1, data obtaining unit 11 obtains text data; variable group classifying unit 12 classifies the data into a plurality of variable groups; variable scoring unit 13 scores the data of at least one of the plurality of variable groups by associating that data with the data of another group; variable input unit 14 takes the data of the scored group as a response variable, and the data of the other group associated with the scored group as an explaining variable, and inputs those data to machine learning unit 15. The machine learning unit 15 generates, through machine learning, a prediction model predicting the response variable from the explaining variable.