Can you read? Do you know what the word "optimum" even means?He admits in his paper he would need at least 800 same-sex couples to be a valid study, and yet he only studied 512 children of same-sex couples.
The greatest limitation of this study is its use of a representative sample of only 512 same-sex parent families, which is several times smaller than optimum for most population studies.
Geez. These people need tutoring in basic English, not a voter's registration card.