Sulloway’s argument about the fraternal birth order effect is weakened by the observation that
A. the effect does not occur in later born sons.
B. the effect does not occur if a later born son has only older sisters.
C. the effect only occurs if a first born son has younger sisters.
D. all of the above
Answer:B
Sulloway’s argument about the fraternal birth order effect is weakened by the observation that
A. the effect does not occur in later born sons. B. the effect does not occur if a later born son has only older sisters. C. the effect only occurs if a first born son has younger sisters. D. all of the above