In which year did the author of The coordination dynamics of mobile conjugate reinforcement obtain his PhD?
1975
J. A. Scott Kelso is a member of OGT Amenity (Ireland). He is also the author of the book "Syllable affiliation of final consonant clusters undergoes a phase transition over speaking rates.". (1996). J. A. Scott Kelso is also the author of "Syllable affiliation of final consonant clusters". (1996). J.A. Scott Kelso was born in the city of Derry, Northern Ireland. He was admitted as a member of the Royal Irish Academy in 2017.
[INST]
Utilize the provided context information, to generate answers to the following question: 
- Generate the answer to the question based on the provided context.
- Avoid including any explanations or apologies in your responses.
- Only respond to questions that ask for the answer to the target question without any additional information.
- Strictly provide the answer without any additional text.
Question: In which year did the author of The coordination dynamics of mobile conjugate reinforcement obtain his PhD?
Context: J. A. Scott Kelso is a member of OGT Amenity (Ireland). He is also the author of the book "Syllable affiliation of final consonant clusters undergoes a phase transition over speaking rates.". (1996). J. A. Scott Kelso is also the author of "Syllable affiliation of final consonant clusters". (1996). J.A. Scott Kelso was born in the city of Derry, Northern Ireland. He was admitted as a member of the Royal Irish Academy in 2017.
[/INST] Answer:
