During the earliest stage of language acquisition (after the babbling stage), children produce, on average, one word per utterance. Thereafter, children's mean length of utterance (MLU) begins to increase. For each file of Adam's data, determine the following:

• Adam's MLU
• Adam's precise age; use the following convention:  years;months;days 

(Hint: CHILDES data sets are always accompanied by a file called "00readme.doc", which contains descriptive information including the subjects' ages. Read these files with Word.)

1. Write below the exact CLAN command you used to calculate Adam's MLU for his first file:
    
   
    
2. Provide a three-column listing of numbers for files, MLUs, and ages:

File                 MLU                 Age