Mimicry for money: Behavioral consequences of imitation

Two experiments investigated the idea that mimicry leads to pro-social behavior. It was hypothesized that mimicking the verbal behavior of customers would increase the size of tips. In Experiment 1, a waitress either mimicked half her customers by literally repeating their order or did not mimic her customers. It was found that she received significantly larger tips when she mimicked her customers than when she did not. In Experiment 2, in addition to a mimicry- and non-mimicry condition, a baseline condition was included in which the average tip was assessed prior to the experiment. The results indicated that, compared to the baseline, mimicry leads to larger tips. These results demonstrate that mimicry can be advantageous for the imitator because it can make people more generous.     

The relationship of mother–child interaction and the child's development of symbolic play

The extent to which the mother–child interactive relationship either promotes or limits a child's ability to see options or choices in the environment was investigated. It was predicted that this quality of interaction provided primarily by the mother would relate to the child's cognitive development as reflected in his or her level of symbolic play. The level and frequency of symbolic and nonsymbolic play in 30 children, ages 12 to 47 months, were coded and mothers' options‐promoting and options‐limiting behaviors were identified. Children, across this range of ages, whose mothers created an options‐promoting social context were observed engaging in more symbolic play. Nonsymbolic play, however, was not found to be significantly influenced by the mother's interactive style. A child's symbolic play marks a dynamic developmental achievement for the child, and appears to be related to the social context created by the mother's interactive style. ©2003 Michigan Association for Infant Mental Health.     

Making the sour sweet? Upcoming food-pellet reinforcement produces positive induction when rats press a lever for unsweetened lemon juice

Research has suggested that rats increase their response rate for a low-valued reinforcer when a high-valued reinforcer will soon be available (i.e., positive induction) because the value of the low-valued substance has increased. The present study tested if such a procedure could be used to increase rats’ responding for a non-reinforcing food. Rats pressed a lever for unsweetened lemon juice in the first half of a 50-min session and, in treatment conditions, for food pellets in the second half. Experiment 1 demonstrated that rates of responding for the lemon juice generally varied directly with the upcoming rate of food-pellet reinforcement and that responding in lemon juice-only sessions did not differ significantly from that observed during extinction. Experiment 2 demonstrated that rats consumed more lemon juice following a condition in which they were displaying positive induction than following a condition in which they only responded for lemon juice. The present results are consistent with the increase in value account of positive induction. More importantly, they may indicate that certain environmental conditions can increase food-directed behavior for a non-reinforcing food, a finding which may have implications for our understanding of eating behavior and dysfunctions (e.g., overeating).     

Careless Responding to Reverse-Worded Items: Implications for Confirmatory Factor Analysis

Many self-report measures include some items worded in the direction opposite to that of other items. These so-called reverse-worded (RW) items can reduce the reliability and validity of a scale, and frequently form a separate method factor that does not appear to be substantively meaningful. One possible explanation for factors defined by RW items is respondent carelessness. The purpose of the present study was to evaluate whether relatively few careless responders to RW items can influence confirmatory-factor-analysis model fit enough that researchers would likely reject a one-factor model for a unidimensional scale. Results based on simulations indicated that if at least about 10% of participants respond to RW items carelessly, researchers are likely to reject a one-factor model for a unidimensional scale.     

Fallout from the Women’s Health Study: A Short-lived Vindication for Feminists and the Resurrection of Hormone Therapies

The Women’s Health Initiative studies were begun in 1997, in large part the result of women’s health activists who for 40 years questioned the safety of hormone use at menopause and criticized the menopause as disease ideology. The studies were prematurely discontinued when investigators found that heretofore acclaimed benefits of hormone use were not supported. Risks to health such as stroke, breast cancer, and thrombophlebitis were found. A feeling of vindication was experienced by feminists but was quickly replaced by cautious optimism as strategies to continue hormone use were published and quality of life issues tied to symptom management emerged. The focus of this article is a review of the hormone story, a discussion of the implications of the Women’s Health Initiative results, and strategies for resolution of the continuing hormone dilemma.     

White Racial Identity Attitudes and the Ego Defense Mechanisms Used by White Counselor Trainees in Racially Provocative Counseling Situations

This exploratory study examined the relationship between racial identity attitudes and the use of ego defense mechanisms by White counselor trainees during cross‐racial counseling and supervision dyads. The sample consisted of 145 White counselor trainees enrolled in both master's and doctoral programs at 2 small private universities located in the northeastern United States. Results indicated that White counselor trainees at less mature statuses of racial identity attitudes relied on more primitive ego defenses to manage the anxiety experienced during racially provocative counseling and supervision dyads. Implications for counseling and counselor training are discussed in the context of the study's findings.     

Prevalence of Cognitively Intact Individuals Residing in Extended Care Nursing Facilities

There appears to be a relative absence of studies that have examined the prevalence of cognitively intact individuals who reside in extended care facilities. Prevalence data were collected on 296 persons who resided in 3 extended care nursing facilities in Central Virginia. Cognitive intactness was evaluated via the Minimum Data Set Cognitive Performance Scale (CPS) and an author-generated survey (i.e., Cognitively Intact Survey [CI Survey]) of select nursing staff members at each facility. The Mini-Mental State Examination (MMSE) was utilized to examine the accuracy of the two measures in identifying cognitive intactness. Findings indicated that prevalence rates of cognitively intact residents varied as a function of the measures utilized to assess intactness. Specifically, a significantly greater proportion of the total sample of residents was judged to be cognitively intact via the CI Survey (34.12%) as compared to the CPS (26.01%). The level of interjudge agreement between the two measures was found to be moderately high (K = 0.68). When the MMSE was employed to verify individuals' levels of intactness, the percentages of residents predicted to actually be cognitively intact were somewhat lower for each measure. Specifically, based on the data obtained via the CI Survey, 22.75% of the total sample were predicted to actually be cognitively intact, whereas 17.85% of the sample were predicted to be intact based on the CPS results. Findings are discussed in light of factors that may have contributed to the differential prevalence rates of cognitively intact individuals obtained across the measures utilized in this study. Concerns regarding the utilization of the MMSE as a criterion measure of cognitive intactness in persons residing in extended care nursing facilities are provided, along with data on the living environments/roommate statuses of those residents judged to be intact via the CI Survey. Implications for the design of future extended care nursing units, as well as future research, are also included.