Maternal Negativity and Children's Externalizing Behavior

Maternal negativity in parent-child interactions related to both the presence and persistence of child externalizing behavior problems. We examined how behavior of 120 mothers and their children in an interaction task at preschool related to assessments of child behavior problems at preschool, first grade, and third grade. At preschool and first-grade, children were assigned to three groups: comparison, moderate externalizing, and pervasive externalizing; at both timepoints the pervasive externalizing group had greater maternal negativity assessed at preschool. Maternal negativity was predicted, beyond the child's disruptive behavior in the task, by two variables: mother's perception of low spousal agreement and support related to child problems and depression. At third grade, child symptoms and diagnoses of ADHD and ODD were predicted by mothers' commands and repeat commands, though not negativity, in the preschool interaction task. Implications of these findings for early family intervention are discussed.     

Free-Living Comparison of Physical Activity and Sleep Data from Fitbit Activity Trackers Worn on the Dominant and Nondominant Wrists

Despite proprietary algorithms to account for differences, output from activity trackers worn on different wrists may not be comparable because individuals vary in their reliance on each hand during free-living activities.

Participants (n = 48) wore Fitbit Flex or Flex2 monitors on each wrist for three days. T tests, equivalence tests, and correlations were used to compare steps, Calories, distance, active minutes, and sleep duration recorded by dominant and nondominant wrist-worn monitors and effect sizes and mean absolute and percent difference were calculated.

The nondominant Flex2 monitor was not equivalent to the dominant wrist-worn monitor and recorded significantly more steps/day (absolute difference = 708), miles/day (0.3), and active minutes/day (7.9) than the dominant Flex2 monitor. For all variables, nondominant and dominant output was correlated (r>0.75).

Nondominant and dominant Flex2 monitors are significantly different, but there were small differences for Flex monitors. Research should investigate effects on behavior and replicate findings using other monitors.     

Utility value interventions in a college biology lab: The impact on motivation

Science writing, such as lab reports, allows students to form a meaningful understanding of scientific concepts. However, students often view scientific writing as unimportant and utilize surface level approaches when completing writing assignments. The current study implemented three experimental interventions (directly-communicated, self-generated, and hybrid) aligned with prior literature and designed to improve the utility value of lab reports in college settings. Participants (n = 1,002) were recruited from 43 lab sections of an introductory biology course at a large southeastern university. Measures of subjective task value (utility value, attainment value, cost, and intrinsic value) were collected pre-, mid-, and post-intervention. The self-generated and hybrid groups exhibited higher self-reported utility value by posttest compared to the control group. Requiring students to generate their own utility value toward a task, followed by a written reflection, increases students' maintained and situational interest for biology laboratory reports.     

A culture of assessment: A bioecological systems approach for early and continuous assessment of deaf infants and children

Even today, with all of the hearing technology and bilingual programs available, many Deaf children arrive at school with severe language delays. With a renewed focus on having Deaf children kindergarten-ready, assessment of language milestones becomes critical as seen in the campaign Child First and the legislation referred to as Language Equality & Acquisition for Deaf Kids (LEAD-K). Here, a strategy is proposed to ensure that Deaf children are kindergarten-ready. The focus is on a re-evaluation of the epistemologies of the social and individualized medical models of health, as well as Bronfenbrenner's bioecological systems approach, to assess all components that impact a Deaf child's ecology to permit maximizing their developmental potentials.     

Development and field validation of an omni-domain power-duration model

ABSTRACT

Purpose: To validate and compare a novel model based on the critical power (CP) concept that describes the entire domain of maximal mean power (MMP) data from cyclists.

Methods: An omni-domain power-duration (OmPD) model was derived whereby the rate of W? expenditure is bound by maximum sprint power and the power at prolonged durations declines from CP log-linearly. The three-parameter CP (3CP) and exponential (Exp) models were likewise extended with the log-linear decay function (Om3CP and OmExp). Each model bounds W? using a different nonconstant function, W?eff (effective W?). Models were fit to MMP data from nine cyclists who also completed four time-trials (TTs).

Results: The OmPD and Om3CP residuals (4 ± 1%) were smaller than the OmExp residuals (6 ± 2%; P < 0.001). W?eff predicted by the OmPD model was stable between 120–1,800 s, whereas it varied for the Om3CP and OmExp models. TT prediction errors were not different between models (7 ± 5%, 8 ± 5%, 7 ± 6%; P = 0.914).

Conclusion: The OmPD offers similar or superior goodness-of-fit and better theoretical properties compared to the other models, such that it best extends the CP concept to short-sprint and prolonged-endurance performance.     

Leadership and the Profession of Counseling: Beliefs and Practices

Thirty‐one individuals who have provided leadership to the counseling profession completed 3 Q‐sorts. These individuals sorted 39 statements about leadership according to 3 phases: when a leadership effort is getting started, when work is progressing, and when a leadership effort is coming to a close. The authors present perspectives on leadership that emerged from the study, during each of the 3 phases, and attempt to present their findings in a way that honors multiple voices about leadership.     

Using Rhetorical/Relational Goal Theory to Examine College Students’ Impressions of Their Instructors

Guided by rhetorical/relational goal theory, the purpose of this study was to examine whether students’ impressions of their instructors’ credibility, attraction, and homophily are influenced by four specific rhetorical and relational communication behaviors that instructors use when communicating with their students in the classroom. Participants were 193 undergraduate students enrolled in a variety of introductory communication courses at a large mid-Atlantic university. Using a series of multiple regression analyses, it was found that (a) clarity emerged as the sole indicator of instructor competence, trustworthiness, and task attraction; (b) clarity and confirmation emerged as indicators of goodwill; and (c) humor and confirmation emerged as indicators of social attraction and attitude homophily.