点二列相关point biserial correlation
点二列相关系数point biserial correlation coefficient
双列腕（海百合）biserial arm
双数列系数biserial coefficient
双列相关系数biserial coefficient of correlation【数】;biserial correlation coefficient【数】
双列系数biserial coefficient【数】
二列的bifarious【植】;biserial【植】;biseriate【植】
双列相关biserial correlation