With the aim of helping female high school students in Qazvin lead a happier life, the hypothesized relationship between happiness, spiritual intelligence, and accountability was explored with the help of an accessible sample of 150 such students. Three instruments of adequate validity and reliability were utilized in order to collect the needed data. Analyses of the collected data revealed that accountability is a better predictor of happiness as it explains 18% of its variance while only 8% of the variance in happiness among respondents is explained by spiritual intelligence.