Effects of Response Uncertainty and Degree of Knowledge on Subjective Uncertainty

1968 ◽  
Vol 22 (3_suppl) ◽  
pp. 1081-1090 ◽  
Author(s):  
Robert D. Hoge ◽  
John T. Lanzetta
Keyword(s):  
Repeated Measures ◽  
Decision Time ◽  
Response Uncertainty ◽  
Subjective Uncertainty ◽  
Amount Of Information ◽  
Repeated Measures Design ◽  
Problem Presentation ◽  
Two Indices ◽  
The Relationship

The experiment was designed to examine the effects on subjective uncertainty of variations in response uncertainty and amount of information and to explore the relationship between two indices of subjective uncertainty, confidence in decision and decision time. 18 Ss were exposed to a 4-factor repeated measures design involving 6 levels of response uncertainty, 2 levels of ‘unknown information’, 2 levels of ‘known information’, and 2 orders of problem presentation. Confidence in decision was significantly affected by response uncertainty, ‘unknown information’, ‘known information’, and the interaction of the 2 information conditions. Decision time was significantly affected by response uncertainty and ‘known information.’

scholarly journals The Acute Effects of Yoga on Executive Function

2013 ◽  
Vol 10 (4) ◽  
pp. 488-495 ◽  
Author(s):  
Neha Gothe ◽  
Matthew B. Pontifex ◽  
Charles Hillman ◽  
Edward McAuley
Keyword(s):  
Aerobic Exercise ◽  
Cognitive Performance ◽  
Repeated Measures ◽  
Reaction Times ◽  
Exercise Bout ◽  
Exercise Session ◽  
Acute Effects ◽  
Cognitive Assessments ◽  
Repeated Measures Design ◽  
The Relationship

Background:Despite an increase in the prevalence of yoga exercise, research focusing on the relationship between yoga exercise and cognition is limited. The purpose of this study was to examine the effects of an acute yoga exercise session, relative to aerobic exercise, on cognitive performance.Methods:A repeated measures design was employed where 30 female college-aged participants (Mean age = 20.07, SD = 1.95) completed 3 counterbalanced testing sessions: a yoga exercise session, an aerobic exercise session, and a baseline assessment. The flanker and n-back tasks were used to measure cognitive performance.Results:Results showed that cognitive performance after the yoga exercise bout was significantly superior (ie, shorter reaction times, increased accuracy) as compared with the aerobic and baseline conditions for both inhibition and working memory tasks. The aerobic and baseline performance was not significantly different, contradicting some of the previous findings in the acute aerobic exercise and cognition literature.Conclusion:These findings are discussed relative to the need to explore the effects of other nontraditional modes of exercise such as yoga on cognition and the importance of time elapsed between the cessation of the exercise bout and the initiation of cognitive assessments in improving task performance.

scholarly journals Disco Time: The Relationship Between Perceived Duration and Tempo in Music

2021 ◽  
Vol 4 ◽  
pp. 205920432098638
Author(s):  
David Hammerschmidt ◽  
Clemens Wöllner ◽  
Justin London ◽  
Birgitta Burger
Keyword(s):  
Repeated Measures ◽  
Musical Experience ◽  
Future Studies ◽  
Repeated Measures Design ◽  
The Absolute ◽  
Musical Tempo ◽  
Duration Measure ◽  
The Relationship ◽  
Absolute Duration ◽  
Perceived Duration

Our perception of the duration of a piece of music is related to its tempo. When listening to music, absolute durations may seem longer as the tempo—the rate of an underlying pulse or beat—increases. Yet, the perception of tempo itself is not absolute. In a study on perceived tempo, participants were able to distinguish between different tempo-shifted versions of the same song (± 5 beats per minute (BPM)), yet their tempo ratings did not match the actual BPM rates; this finding was called tempo anchoring effect (TAE). In order to gain further insights into the relation between duration and tempo perception in music, the present study investigated the effect of musical tempo on two different duration measures, to see if there is an analog to the TAE in duration perception. Using a repeated-measures design, 32 participants (16 musicians) were randomly presented with instrumental excerpts of Disco songs at the original tempi and in tempo-shifted versions. The tasks were (a) to reproduce the absolute duration of each stimulus (14–20 s), (b) to estimate the absolute duration of the stimuli in seconds, and (c) to rate the perceived tempo. Results show that duration reproductions were longer with faster tempi, yet no such effect was found for duration estimations. Thus, lower-level reproductions were affected by the tempo, but higher-level estimations were not. The tempo-shifted versions showed no effect on both duration measures, suggesting that the tempo difference for the duration-lengthening effect requires a difference of at least 20 BPM, depending on the duration measure. Results of perceived tempo replicated the typical rating pattern of the TAE, but this was not found in duration measures. The roles of spontaneous motor tempo and musical experience are discussed, and implications for future studies are given.

Positively Engaged Pathways: A Brief Pre-Employment Intervention for Transition Age Youth With Disabilities

2020 ◽  
Vol 34 (4) ◽  
pp. 284-296
Author(s):  
Allison R. Fleming ◽  
Brian N. Phillips ◽  
Elizabeth H. Gilfillan ◽  
Joy Gray ◽  
Megan McCloskey
Keyword(s):  
Repeated Measures ◽  
School Setting ◽  
Future Research ◽  
Transition Age Youth ◽  
Youth With Disabilities ◽  
Transition Age ◽  
Postsecondary Outcomes ◽  
Repeated Measures Design ◽  
Counseling Interventions ◽  
The Relationship

PurposeThis study was a pilot of a brief psychological capital (PsyCap) intervention with a sample of transition age youth with disabilities (N = 24) in a school setting. Substantial evidence supports the relationship between PsyCap and employment outcomes. Transition age youth with disabilities are an important target for pre-employment counseling interventions due to a lack of parity in postsecondary outcomes. Researchers have successfully boosted PsyCap in adult samples using brief interventions.MethodsPsyCap and vocational outcome expectancy (VOE) were compared in a repeated measures design.ResultsPsyCap and VOE, and PsyCap and school performance were significantly correlated in our sample, but no differences were observed in PsyCap or VOE postintervention.ConclusionAs the first known effort to develop a PsyCap driven pre-employment intervention for transition age youth with disabilities, our experience and findings provide several implications for practice and future research. Aspects of the intervention to be modified for future efforts are presented.

scholarly journals Interactivity And Mental Arithmetic: Coupling Mind And World Transforms And Enhances Performance

2015 ◽  
Vol 41 (1) ◽  
pp. 41-59 ◽  
Author(s):  
Lisa G. Guthrie ◽  
Frédéric Vallée-Tourangeau
Keyword(s):  
Problem Solving ◽  
Repeated Measures ◽  
Mental Arithmetic ◽  
Calculation Error ◽  
Problem Solution ◽  
Repeated Measures Design ◽  
Problem Presentation ◽  
Hands On ◽  
Quantitative Analyses ◽  
Arithmetic Performance

AbstractInteractivity has been linked to better performance in problem solving, due in part to a more efficient allocation of attentional resources, a better distribution of cognitive load, but perhaps more important by enabling the reasoner to shape and reshape the physical problem presentation to promote the development of the problem solution. Interactivity in solving quotidian arithmetic problems involves gestures, pointing, and the recruitment of artefacts to facilitate computation and augment efficiency. In the experiment reported here, different types of interactivity were examined with a series of mental arithmetic problems. Using a repeated-measures design, participants solved series of five 11-digit sums in four conditions that varied in the type of interactivity: (i) no interactivity (participants solved the problems with their hands on the table top), (ii) pointing (participants could point at the numbers), (iii) pen and paper (participants could note interim totals with a pen), and (iv) tokens (the sums were presented as 11 numbered tokens the arrangement of which participants were free to modify as they proceeded to the solution). Performance in the four conditions was measured in terms of accuracy, calculation error, and efficiency (a ratio composed of the proportion correct over the proportion of time invested in working on the sums). These quantitative analyses were supplemented by a detailed qualitative examination of a participant’s actions in the different conditions. The integration of artefacts, such as tokens or a pen, offered reasoners the opportunity to reconfigure the physical presentation of the problem, enacting different arithmetic strategies: the affordance landscape shifts as the problem trajectory is enacted through interactivity, and this generally produced better “mental” arithmetic performance. Participants also felt more positive about and better engaged with the task when they could reconfigure the problem presentation through interactivity. These findings underscore the importance of engineering task environments in the laboratory that offer a window on how problem solving unfolds through a coalition of mental and physical resources.

The effect of fake news in marketing halal food: a moderating role of religiosity

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zazli Lily Wisker
Keyword(s):  
Repeated Measures ◽  
Moral Code ◽  
Fake News ◽  
Content Type ◽  
Repeated Measures Design ◽  
Halal Food ◽  
The Relationship ◽  
Limited Dimension ◽  
Brand Hate

Purpose This study aims to explore how consumers process and respond to fake news on halal food in a Muslim-majority country. The study hypothesises that fake news that violates one’s moral code could induce anger resulting in brand hate. Religiosity plays a role as a moderating variable for the relationship. Design/methodology/approach Data were collected in two studies using quasi-experiment repeated measures factorial design, 2 × 2 between subjects. In Study 1, 219 participated, whereas in Study 2, a total of 173 was recruited for the experiment. The study uses one-way repeated measures design ANOVA and MEMORE to test the effects of moderation for repeated measures. Findings The findings indicate that fake news that violates one’s moral code, belief and values could induce anger and brand hate. Religiosity moderates the relationship between anger and brand hate Research limitations/implications The study’s limitations include the limited dimension measured for religiosity and brand hate. Originality/value The study of brand hate as opposed to brand love is relatively scarce. This study has observed how fake news that violates one’s moral code is detrimental to the brand, which in turn induces hate. Marketing managers have to be cautious in marketing their products in more religious countries. Besides, they have to be proactive in combating fake news that might tarnish their brand.

A trial engagement? Innovative free and other service trials

2018 ◽  
Vol 32 (1) ◽  
pp. 46-56 ◽  
Author(s):  
David H.B. Bednall ◽  
Harmen Oppewal ◽  
Krongjit Laochumnanvanit ◽  
Cuc Nguyen
Keyword(s):  
Repeated Measures ◽  
Customer Engagement ◽  
Personal Service ◽  
Content Type ◽  
Repeated Measures Design ◽  
Trial Experience ◽  
Personal Services ◽  
Credence Services ◽  
The Relationship ◽  
Practical Implications

Purpose This paper aims to discover how consumers process an innovative set of systematically varied service trial offers and how this affects their learning and interaction as precursors to customer engagement. Design/methodology/approach The research uses experiments that manipulate pricing, type of service and delivery method. A repeated-measures design was used with a sample of 396 participants. Findings Free (as opposed to cost or full price) service trials were more likely to be accepted, with perceived truthfulness of the trial offer and perceived obligation mediating the relationship. Credence service trials generate higher levels of perceived obligation than experience service trial offers, while personal services are more likely to lead to trial adoption. Research limitations/implications The research can be extended to well-recognized brands and further mixed service contexts. Practical implications Trial offers of new services are best targeted at buyers who are in the likely buyer group. The trial offer may accelerate time to purchase and relieve perceived risks. The trials of credence services need further signals of quality in the trial itself for consumers to adopt the full service. With personal service trials, skeptical consumers need assurance as to what will happen after the trial experience. Free trials may actually devalue a service, threatening engagement. Originality/value Uniquely, service trial offers are systematically manipulated using experience versus credence and personal versus impersonal trials to determine their effect on acceptance of the trial offer and the full service. Additionally, the study compares free, cost price and full price trial offers.

scholarly journals An Interdisciplinary Examination of Stress and Injury Occurrence in Athletes

2020 ◽  
Vol 2 ◽  
Author(s):  
Harry Fisher ◽  
Marianne JR Gittoes ◽  
Lynne Evans ◽  
C Leah Bitchell ◽  
Richard J Mullen ◽  
...  
Keyword(s):  
Data Collection ◽  
Life Events ◽  
Repeated Measures ◽  
Negative Life Events ◽  
Interdisciplinary Approach ◽  
Muscle Stiffness ◽  
Time Points ◽  
Repeated Measures Design ◽  
Injury Occurrence ◽  
The Relationship

This paper adopts a novel, interdisciplinary approach to explore the relationship between stress-related psychosocial factors, physiological markers and occurrence of injury in athletes using a repeated measures prospective design. At four data collection time-points, across 1-year of a total 2-year data collection period, athletes completed measures of major life events, the reinforcement sensitivity theory personality questionnaire, muscle stiffness, heart rate variability and postural stability, and reported any injuries they had sustained since the last data collection. Two Bayesian networks were used to examine the relationships between variables and model the changes between data collection points in the study. Findings revealed muscle stiffness to have the strongest relationship with injury occurrence, with high levels of stiffness increasing the probability of sustaining an injury. Negative life events did not increase the probability of injury occurrence at any single time-point; however, when examining changes between time points, increases in negative life events did increase the probability of injury. In addition, the combination of increases in negative life events and muscle stiffness resulted in the greatest probability of sustaining an injury. Findings demonstrated the importance of both an interdisciplinary approach and a repeated measures design to furthering our understanding of the relationship between stress-related markers and injury occurrence.

scholarly journals Influence of Biomechanical Parameters on Performance in Elite Triathletes along 29 Weeks of Training

2021 ◽  
Vol 11 (3) ◽  
pp. 1050
Author(s):  
Javier Olaya-Cuartero ◽  
Roberto Cejuela
Keyword(s):  
Performance Improvement ◽  
Repeated Measures ◽  
Step Length ◽  
Repeated Measures Design ◽  
Anthropometric Characteristics ◽  
Post Test ◽  
Biomechanical Parameters ◽  
Physiological Values ◽  
The Relationship ◽  
Pearson Correlations

The purpose of the study was to assess how the modification of biomechanical parameters influences the performance of elite triathletes. Four elite international triathletes participated in this study. The anthropometric method ISAK was used to estimate the triathlete’s body composition. For the physiological and biomechanical parameters, a running test (RT) was performed on an outdoor track, with the participants wearing the Stryd Summit Footpod (Stryd, Boulder, CO, USA). The pre-test took place in the last week of an adaptation mesocycle; then, after 29 weeks of training, the triathletes performed the post-test. A within-subject repeated measures design was used to assess changes in the anthropometric, physiological and biomechanical parameters. Pearson correlations (r) were applied to determine the relationship between the performance at different intensities (VT1, VT2 and MAS) and the biomechanical parameters. Concerning the anthropometric characteristics, significant differences were found in the summation (Σ) of skinfold (8.1 cm); as a consequence, the % fat mass was reduced (1.2%). Significant differences were found in the physiological values (VO2 and % VO2max), speed and biomechanical parameters, such as step length normalized, to the specific physiological intensity of the short-distance triathlon, the VT2. Therefore, performance improvement in the running segment could not only be explained by physiological changes, but also by biomechanical parameters changes.

Inducing Unconscious Stress

2020 ◽  
Vol 34 (3) ◽  
pp. 192-201
Author(s):  
Melanie M. van der Ploeg ◽  
Jos F. Brosschot ◽  
Markus Quirin ◽  
Richard D. Lane ◽  
Bart Verkuil
Keyword(s):  
Repeated Measures ◽  
Activity Patterns ◽  
Physiological Changes ◽  
Implicit Measures ◽  
Prime Word ◽  
Student Sample ◽  
Priming Task ◽  
Subject Design ◽  
The Relationship ◽  
Stress And Health

Abstract. Stress-related stimuli may be presented outside of awareness and may ultimately influence health by causing repetitive increases in physiological parameters, such as blood pressure (BP). In this study, we aimed to corroborate previous studies that demonstrated BP effects of subliminally presented stress-related stimuli. This would add evidence to the hypothesis that unconscious manifestations of stress can affect somatic health. Additionally, we suggest that these findings may be extended by measuring affective changes relating to these physiological changes, using measures for self-reported and implicit positive and negative affectivity. Using a repeated measures between-subject design, we presented either the prime word “angry” ( n = 26) or “relax” ( n = 28) subliminally (17 ms) for 100 trials to a student sample and measured systolic and diastolic BP, heart rate (HR), and affect. The “angry” prime, compared to the “relax” prime, did not affect any of the outcome variables. During the priming task, a higher level of implicit negative affect (INA) was associated with a lower systolic BP and diastolic BP. No association was found with HR. Self-reported affect and implicit positive affect were not related to the cardiovascular (CV) activity. In sum, anger and relax primes elicited similar CV activity patterns, but implicit measures of affect may provide a new method to examine the relationship between (unconscious) stress and health.

Power of Modified Brown-Forsythe and Mixed-Model Approaches in Split-Plot Designs

Methodology ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 9-22 ◽  
Author(s):  
Pablo Livacic-Rojas ◽  
Guillermo Vallejo ◽  
Paula Fernández ◽  
Ellián Tuero-Herrero
Keyword(s):  
Repeated Measures ◽  
Statistical Power ◽  
Mixed Model ◽  
Covariance Structure ◽  
Simulation Method ◽  
Future Research ◽  
Repeated Measures Design ◽  
Fixed And Random Effects ◽  
Split Plot ◽  
High Level

Abstract. Low precision of the inferences of data analyzed with univariate or multivariate models of the Analysis of Variance (ANOVA) in repeated-measures design is associated to the absence of normality distribution of data, nonspherical covariance structures and free variation of the variance and covariance, the lack of knowledge of the error structure underlying the data, and the wrong choice of covariance structure from different selectors. In this study, levels of statistical power presented the Modified Brown Forsythe (MBF) and two procedures with the Mixed-Model Approaches (the Akaike’s Criterion, the Correctly Identified Model [CIM]) are compared. The data were analyzed using Monte Carlo simulation method with the statistical package SAS 9.2, a split-plot design, and considering six manipulated variables. The results show that the procedures exhibit high statistical power levels for within and interactional effects, and moderate and low levels for the between-groups effects under the different conditions analyzed. For the latter, only the Modified Brown Forsythe shows high level of power mainly for groups with 30 cases and Unstructured (UN) and Autoregressive Heterogeneity (ARH) matrices. For this reason, we recommend using this procedure since it exhibits higher levels of power for all effects and does not require a matrix type that underlies the structure of the data. Future research needs to be done in order to compare the power with corrected selectors using single-level and multilevel designs for fixed and random effects.

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