Hedonic Tone,Perceived Arousal,and Item Desirability: Three Components of Self-reported Mood

Self-reports of mood are the most frequently used measure of subjective emotional experience in studies of human emotion. The present study evaluated the degree to which self-reports of mood reflect the social desirability of an affective state, rather than the hedonic tone and the level of arousal associated with such states. The study produced three main findings. First, the desirability of a mood and the hedonic quality of a mood are related, but not identical entities. Secondly, the desirability of a mood is also related to the level of arousal the mood denotes. Thirdly, desirability components are related to the self-report ratings of mood, but the ratings also reflect the hedonic tone and level of arousal describing the internal state of the respondents. Social desirability does affect the self-report ratings that are often used in emotion research, but such ratings also reflect something about the internal state of the respondents.     

Eta Squared,Partial Eta Squared,and Misreporting of Effect Size in Communication Research

Communication researchers, along with social scientists from a variety of disciplines, are increasingly recognizing the importance of reporting effect sizes to augment significance tests. Serious errors in the reporting of effect sizes, however, have appeared in recently published articles. This article calls for accurate reporting of estimates of effect size. Eta squared (η²) is the most commonly reported estimate of effect sized for the ANOVA. The classical formulation of eta squared (Pearson, 1911; Fisher, 1928) is distinguished from the lesser known partial eta squared (Cohen, 1973), and a mislabeling problem in the statistical software SPSS (1998) is identified. What SPSS reports as eta squared is really partial eta squared. Hence, researchers obtaining estimates of eta squared from SPSS are at risk of reporting incorrect values. Several simulations are reported to demonstrate critical issues. The strengths and limitations of several estimates of effect size used in ANOVA are discussed, as are the implications of the reporting errors. A list of suggestions for researchers is then offered.     

Examining memory for heterosexual college students' sexual experiences using an electronic mail diary.

To examine memory for sexual expenences, the authors asked 37 sexually active, nonmonogamous, heterosexual college students to complete an e-mail diary every day for 1 month. The diary contained questions about their sexual behaviors. Six to 12 months later, they returned for a surprise memory test, which contained questions about their sexual experiences from the diary phase. They were asked about their sexual partners, the types of sexual experiences they had, and condom use. Participants underreported the number of partners they had, but they overreported both sexual experiences and condom use. The results have implications for both sexual health educators and for people who engage in high-risk sexual behaviors.