Displaying publications 1 - 20 of 76 in total

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  1. Sim SM, Rasiah RI
    Ann Acad Med Singap, 2006 Feb;35(2):67-71.
    PMID: 16565756
    INTRODUCTION: This paper reports the relationship between the difficulty level and the discrimination power of true/false-type multiple-choice questions (MCQs) in a multidisciplinary paper for the para-clinical year of an undergraduate medical programme.

    MATERIALS AND METHODS: MCQ items in papers taken from Year II Parts A, B and C examinations for Sessions 2001/02, and Part B examinations for 2002/03 and 2003/04, were analysed to obtain their difficulty indices and discrimination indices. Each paper consisted of 250 true/false items (50 questions of 5 items each) on topics drawn from different disciplines. The questions were first constructed and vetted by the individual departments before being submitted to a central committee, where the final selection of the MCQs was made, based purely on the academic judgement of the committee.

    RESULTS: There was a wide distribution of item difficulty indices in all the MCQ papers analysed. Furthermore, the relationship between the difficulty index (P) and discrimination index (D) of the MCQ items in a paper was not linear, but more dome-shaped. Maximal discrimination (D = 51% to 71%) occurred with moderately easy/difficult items (P = 40% to 74%). On average, about 38% of the MCQ items in each paper were "very easy" (P > or =75%), while about 9% were "very difficult" (P <25%). About two-thirds of these very easy/difficult items had "very poor" or even negative discrimination (D < or =20%).

    CONCLUSIONS: MCQ items that demonstrate good discriminating potential tend to be moderately difficult items, and the moderately-to-very difficult items are more likely to show negative discrimination. There is a need to evaluate the effectiveness of our MCQ items.

    Matched MeSH terms: Choice Behavior
  2. Shukri M, Jones F, Conner M
    Appetite, 2018 04 01;123:225-232.
    PMID: 29294321 DOI: 10.1016/j.appet.2017.12.027
    There is increasing evidence to suggest that work-family conflict is implicated in poor eating patterns. Yet, the underlying mechanism remains unexplored. The objectives of the present study were to demonstrate the interplay between work-family conflict, eating style, and unhealthy eating, and to test whether body mass index (BMI) and its interactions further explicate the relationships. In this study, 586 Malaysian adults (normal weight n = 437, overweight n = 149) completed a questionnaire, which included demographic variables, work-family scales, eating style measures, namely, restrained, emotional or external eating and reported food intake. As hypothesized, results showed that family-to-work conflict (FWC), emotional eating and external eating were positively related to unhealthy food consumption. In addition, emotional eating was found to moderate the impact of FCW on eating. These findings are consistent with research that has revealed emotional eating can indeed increase the positive association between stress such as conflict and unhealthy food choices. However, we found no clear support for the interactive effects of BMI. Our research builds on the findings of existing research as it demonstrates the role of eating style in explaining the association between work-family conflict and unhealthy eating. This conclusion has potential implications for appropriate interventions and calls for the enhancement of various policies to tackle obesity and other health problems.
    Matched MeSH terms: Choice Behavior
  3. Koo HC, Lee CL, Nur Hidayah AS, Nurain Hazwani AR
    Appetite, 2018 04 01;123:256-263.
    PMID: 29309853 DOI: 10.1016/j.appet.2018.01.002
    Whole grains play an important role in regulating body weight. However, interventions aimed to increase whole grains consumption have had limited impact on body mass index for age z-score (BAZ) due to insufficient understanding of knowledge, attitudes and practices (KAP) toward whole grains. This survey aimed to evaluate whole grains KAP among schoolchildren, as well as to investigate the associations of whole grains KAP with BAZ among the schoolchildren in Negeri Sembilan, Malaysia. This cross-sectional survey was conducted among 380 schoolchildren aged 9-11 years, cluster sampled from six randomly selected schools. Data were collected through a validated self-administered guided questionnaire. Body weight and height were measured. A majority of the schoolchildren had normal body weight (56.6%), moderate whole grains knowledge (42.6%), as well as neutral attitudes (66.1%) and poor practices (58.9%) toward whole grains consumption. Significant positive associations were found between knowledge and attitudes (r = 0.337; p 
    Matched MeSH terms: Choice Behavior
  4. Chua SS, Paraidathathu T
    Asia Pac J Public Health, 2005;17(2):117-23.
    PMID: 16425656
    This study was conducted to evaluate the use of non-steroidal anti-inflammatory drugs (NSAIDs) by consumers who obtained these drugs from community pharmacies. Factors that influenced community pharmacists in their choice of NSAIDs were also determined. Personal interviews were conducted on consumers who visited the 25 participating community pharmacies throughout Malaysia. Of the 389 respondents, 49% requested for an NSAID by name, 42% asked the pharmacist to recommend a medication and 9% had a doctor's prescription. NSAIDs were mainly purchased for joint/shoulder pain and the most commonly dispensed was diclofenac. Elderly respondents were more likely to be dispensed a selective COX-2 inhibitor than those below 60. NSAIDs were recommended based mainly on the pharmacist's perception of their efficacy, cost and safety. Community pharmacists play an important role in assisting patients in choosing the most appropriate NSAID for their health problems.
    Matched MeSH terms: Choice Behavior
  5. Othman NH, Zaki FH, Hussain NH, Yusoff WZ, Ismail P
    Asian Pac J Cancer Prev, 2016;17(7):3489-94.
    PMID: 27509997
    BACKGROUND: A major problem with cervical cancer screening in countries which have no organized national screening program for cervical cancer is suboptimal participation. Implementation of selfsampling method may increase the coverage.

    OBJECTIVE: We determined the agreement of cytological diagnoses made on samples collected by women themselves (selfsampling) versus samples collected by physicians (Physician sampling).

    MATERIALS AND METHODS: We invited women volunteers to undergo two procedures; cervical selfsampling using the Evalyn brush and physician sampling using a Cervex brush. The women were shown a video presentation on how to take their own cervical samples before the procedure. The samples taken by physicians were taken as per routine testing (Gold Standard). All samples were subjected to Thin Prep monolayer smears. The diagnoses made were according to the Bethesda classification. The results from these two sampling methods were analysed and compared.

    RESULTS: A total of 367 women were recruited into the study, ranging from 22 to 65 years age. There was a significant good agreement of the cytological diagnoses made on the samples from the two sampling methods with the Kappa value of 0.568 (p=0.040). Using the cytological smears taken by physicians as the gold standard, the sensitivity of selfsampling was 71.9% (95% CI:70.972.8), the specificity was 86.6% (95% CI:85.7 87.5), the positive predictive value was 74.2% (95% CI:73.375.1) and the negative predictive value was 85.1% (95% CI: 84.286.0). Selfsampling smears (22.9%) allowed detection of microorganisms better than physicians samples (18.5%).

    CONCLUSIONS: This study shows that samples taken by women themselves (selfsampling) and physicians have good diagnostic agreement. Selfsampling could be the method of choice in countries in which the coverage of women attending clinics for screening for cervical cancer is poor.

    Matched MeSH terms: Choice Behavior
  6. Ahmad Tajuddin NAN, Suhaimi J, Ramdzan SN, Malek KA, Ismail IA, Shamsuddin NH, et al.
    BMC Pregnancy Childbirth, 2020 May 19;20(1):309.
    PMID: 32429857 DOI: 10.1186/s12884-020-02987-9
    BACKGROUND: Incidences of unassisted home birthing practices have been increasing in Malaysia despite the accessibility to safe and affordable child birthing facilities. We aimed to explore the reasons for women to make such decisions.

    METHODS: Twelve women participated in in-depth interviews. They were recruited using a snowballing approach. The interviews were supported by a topic guide which was developed based on the Theory of Planned Behaviour and previous literature. The interviews were audio-recorded, transcribed verbatim and analysed using thematic analysis.

    RESULTS: Women in this study described a range of birthing experiences and personal beliefs as to why they chose unassisted home birth. Four themes emerged from the interviews; i) preferred birthing experience, ii) birth is a natural process, iii) expressing autonomy and iv) faith. Such decision to birth at home unassisted was firm and steadfast despite the possible risks and complications that can occur. Giving birth is perceived to occur naturally regardless of assistance, and unassisted home birth provides the preferred environment which health facilities in Malaysia may lack. They believed that they were in control of the birth processes apart from fulfilling the spiritual beliefs.

    CONCLUSIONS: Women may choose unassisted home birth to express their personal views and values, at the expense of the health risks. Apart from increasing mothers' awareness of the possible complications arising from unassisted home births, urgent efforts are needed to provide better birth experiences in healthcare facilities that resonate with the mothers' beliefs and values.

    Matched MeSH terms: Choice Behavior*
  7. Ng SH, Kelly B, Se CH, Sahathevan S, Chinna K, Ismail MN, et al.
    BMC Public Health, 2015;15:1047.
    PMID: 26459341 DOI: 10.1186/s12889-015-2392-z
    Television food advertising (TVFA) is the most dominant medium in the obesogenic environment promoting unhealthy food choices in children.
    Matched MeSH terms: Choice Behavior
  8. Goto N, Mushtaq F, Shee D, Lim XL, Mortazavi M, Watabe M, et al.
    Biol Psychol, 2017 09;128:11-20.
    PMID: 28666891 DOI: 10.1016/j.biopsycho.2017.06.004
    We investigated whether well-known neural markers of selective attention to motivationally-relevant stimuli were modulated by variations in subjective preference towards consumer goods in a virtual shopping task. Specifically, participants viewed and rated pictures of various goods on the extent to which they wanted each item, which they could potentially purchase afterwards. Using the event-related potentials (ERP) method, we found that variations in subjective preferences for consumer goods strongly modulated positive slow waves (PSW) from 800 to 3000 milliseconds after stimulus onset. We also found that subjective preferences modulated the N200 and the late positive potential (LPP). In addition, we found that both PSW and LPP were modulated by subsequent buying decisions. Overall, these findings show that well-known brain event-related potentials reflecting selective attention processes can reliably index preferences to consumer goods in a shopping environment. Based on a large body of previous research, we suggest that early ERPs (e.g. the N200) to consumer goods could be indicative of preferences driven by unconditional and automatic processes, whereas later ERPs such as the LPP and the PSW could reflect preferences built upon more elaborative and conscious cognitive processes.
    Matched MeSH terms: Choice Behavior/physiology*
  9. Stephen ID, Perera AT
    Body Image, 2014 Mar;11(2):183-6.
    PMID: 24405818 DOI: 10.1016/j.bodyim.2013.11.007
    Perceived weight in the face and body size have been shown to be significant predictors of both attractiveness and health. Studies looking at the relationship between attractiveness, perceived health, and perceived weight in faces have found that individuals prefer a lower weight for attractiveness than for apparent health. Here, a group of twenty-four Asian participants were allowed to manipulate the apparent body mass indices (BMIs) of full-length photographs of young Malaysian Chinese women to enhance their perceived healthiness and attractiveness. Results showed that both men and women differentiated between attractiveness and health by preferring a lower BMI for attractiveness than health, suggesting a consistency in the preferred ideal BMI for attractiveness and healthy appearance across both sexes. Results also suggested that BMI provides important cues to judgments of attractive and healthy appearance.
    Matched MeSH terms: Choice Behavior
  10. Swami V, Tovée MJ
    Body Image, 2007 Dec;4(4):391-6.
    PMID: 18089286
    Ninety-six Malaysian and British men rated for physical attractiveness a set of photographs of real women in profile, with known body mass index (BMI) and waist-to-hip ratio (WHR). Results showed that BMI accounted for the greater amount of variance in all settings. There were also significant differences in preferences for body weight, with low resource, low socioeconomic status (SES) raters preferring a significantly heavier partner than high resource, high SES raters. The disparity with previous findings using line drawings of women in profile was discussed in terms of the weaknesses of line-drawn stimuli.
    Matched MeSH terms: Choice Behavior
  11. Jaafar NI, Darmawan B, Mohamed Ariffin MY
    Cyberpsychol Behav Soc Netw, 2014 Nov;17(11):702-8.
    PMID: 25405782 DOI: 10.1089/cyber.2014.0098
    This study employed the Model of Technology Preference (MTP) to explain the relationship of the variables as the antecedents of behavioral intention to adopt a social networking site (SNS) for communication. Self-administered questionnaires were distributed to SNS account users using paper-based and web-based surveys that led to 514 valid responses. The data were analyzed using structural equation modeling (SEM). The results show that two out of three attributes of the attribute-based preference (ATRP) affect attitude-based preference (ATTP). The data support the hypotheses that perceived enjoyment and social presence are predictors of ATTP. In this study, the findings further indicated that ATTP has no relationship with the behavioral intention of using SNS, but it has a relationship with the attitude of using SNS. SNS development should provide features that ensure enjoyment and social presence for users to communicate instead of using the traditional face-to-face method of communication.
    Matched MeSH terms: Choice Behavior*
  12. Chan NW
    Disasters, 1995 Dec;19(4):287-307.
    PMID: 8564454
    In Peninsular Malaysia 'structural' factors are found to influence strongly people's persistent occupation of floodplains. Thus, despite a high level of flood hazard awareness, a high level of pessimism and a high level of expectation of future floods, poorer individuals seldom attempt to leave for more advantageous locations but are instead trapped in their present locations by structural factors such as poverty, low residential and occupational mobility, low educational attainment, traditional land inheritance, government aid, and government disaster preparedness, relief and rehabilitation programmes. These forces exert a strong influence upon individuals and largely control their choice of residential location in response to flood hazards, thereby reinforcing the persistent occupation of floodplains. Structural factors such as landlessness, rural-urban migration, floodplain encroachment and squatting are also highly influential in leading people to move. Even for those who move, structural factors have largely confined their choice of residential location to urban floodplains.
    Matched MeSH terms: Choice Behavior*
  13. Rusnani Ab Latif, Rasidah Mohamed, Akehsan Dahlan, Mohd Zarawi Mat Nor
    MyJurnal
    The Delphi technique is a widely used and accepted method for gathering data from participantswithin domain of expertise. The objective of this study is to discuss the process of the three roundsDelphi technique in seeking a consensus of concept mapping structure and Multiple Choice Questions(MCQ) in Diabetic Mellitus subject. In the first, round, participants were given a structuredquestionnaire regarding item of concept mapping structure and MCQ in Diabetic Mellitus subject.The second were added mean and median value of round one. In the third round were add meanand median value of round two were added. Participants were asked to rate the categorised responsesfrom Round 1 on a scale of 1 to 5, with 1 being “Very irrelevant” and 5 being “Very relevant”. Thistechnique does not require participants to meet face-to-face, thereby making it useful to conductsurveys with qualified people over a wide geographic area. The feedback process allows and encouragesthe selected Delphi participants to reassess their initial judgements about the information providedin previous iterations. Data is then analysed to check for consistency of experts’ responses betweenrounds. Instrument developed from the Delphi technique research findings is also examined forvalidation from experts in educational medical health sciences on content and constructs validity.Analysis on the consensus of data from experts was based on median, inter quartile range and quartiledeviation on Round 1, 2 and 3 data. Therefore, the Delphi technique is an appropriate method foridentifying significant issues related with academic.
    Matched MeSH terms: Choice Behavior
  14. Salgado-Montejo A, Alvarado JA, Velasco C, Salgado CJ, Hasse K, Spence C
    Front Psychol, 2015;6:1382.
    PMID: 26441757 DOI: 10.3389/fpsyg.2015.01382
    A within-participants experiment was conducted in two countries (the UK and Colombia) in order to investigate the matching of shapes to taste words. Comparing the two countries allowed us to explore some of the cultural differences that have been reported thus far solely in terms of people's visual preferences. In particular, we addressed the question of whether properties other than angularity influence shape-valence and shape-taste matching (crossmodal correspondences). The participants in the present study repeatedly matched eight shapes, varying in terms of their angularity, symmetry, and number of elements to one of two words-pleasant or unpleasant and sweet or sour. Participants' choices, as well as the latency of their responses, and their hand movements, were evaluated. The participants were more likely to judge those shapes that were rounder, symmetrical, and those shapes that had fewer elements as both pleasant and sweet. Those shapes that were more angular, asymmetrical, and that had a greater number of elements, were more likely to be judged as both unpleasant and sour instead. The evidence presented here therefore suggests that aside from angularity and roundness, both symmetry/asymmetry and the number of elements present in a shape also influence valence and taste categorizations.
    Matched MeSH terms: Choice Behavior
  15. Ghazali AS, Ham J, Barakova EI, Markopoulos P
    Front Robot AI, 2018;5:73.
    PMID: 33500952 DOI: 10.3389/frobt.2018.00073
    The growing interest in social robotics makes it relevant to examine the potential of robots as persuasive agents and, more specifically, to examine how robot characteristics influence the way people experience such interactions and comply with the persuasive attempts by robots. The purpose of this research is to identify how the (ostensible) gender and the facial characteristics of a robot influence the extent to which people trust it and the psychological reactance they experience from its persuasive attempts. This paper reports a laboratory study where SociBot™, a robot capable of displaying different faces and dynamic social cues, delivered persuasive messages to participants while playing a game. In-game choice behavior was logged, and trust and reactance toward the advisor were measured using questionnaires. Results show that a robotic advisor with upturned eyebrows and lips (features that people tend to trust more in humans) is more persuasive, evokes more trust, and less psychological reactance compared to one displaying eyebrows pointing down and lips curled downwards at the edges (facial characteristics typically not trusted in humans). Gender of the robot did not affect trust, but participants experienced higher psychological reactance when interacting with a robot of the opposite gender. Remarkably, mediation analysis showed that liking of the robot fully mediates the influence of facial characteristics on trusting beliefs and psychological reactance. Also, psychological reactance was a strong and reliable predictor of trusting beliefs but not of trusting behavior. These results suggest robots that are intended to influence human behavior should be designed to have facial characteristics we trust in humans and could be personalized to have the same gender as the user. Furthermore, personalization and adaptation techniques designed to make people like the robot more may help ensure they will also trust the robot.
    Matched MeSH terms: Choice Behavior
  16. Walters K, Cox A, Yaacob H
    Genet Epidemiol, 2019 Sep;43(6):675-689.
    PMID: 31286571 DOI: 10.1002/gepi.22212
    The default causal single-nucleotide polymorphism (SNP) effect size prior in Bayesian fine-mapping studies is usually the Normal distribution. This choice is often based on computational convenience, rather than evidence that it is the most suitable prior distribution. The choice of prior is important because previous studies have shown considerable sensitivity of causal SNP Bayes factors to the form of the prior. In some well-studied diseases there are now considerable numbers of genome-wide association study (GWAS) top hits along with estimates of the number of yet-to-be-discovered causal SNPs. We show how the effect sizes of the top hits and estimates of the number of yet-to-be-discovered causal SNPs can be used to choose between the Laplace and Normal priors, to estimate the prior parameters and to quantify the uncertainty in this estimation. The methodology can readily be applied to other priors. We show that the top hits available from breast cancer GWAS provide overwhelming support for the Laplace over the Normal prior, which has important consequences for variant prioritisation. This work in this paper enables practitioners to derive more objective priors than are currently being used and could lead to prioritisation of different variants.
    Matched MeSH terms: Choice Behavior
  17. Chee Khoon Chan
    Glob Health Promot, 2009 Dec;16(4):54-7.
    PMID: 20028669 DOI: 10.1177/1757975909348131
    In parallel with the neo-liberal retrenchment of the welfarist state, an increasing emphasis on the responsibility of individuals in managing their own affairs and their well-being has been evident. In the health arena for instance, this was a major theme permeating the UK government's White Paper Choosing Health: Making Healthy Choices Easier (2004), which appealed to an ethos of autonomy and self-actualization through activity and consumption which merited esteem. As a counterpoint to this growing trend of informed responsibilization, constrained choices (constrained agency) provides a useful framework for a judicious balance and sense of proportion between an individual behavioural focus and a focus on societal, systemic, and structural determinants of health and well-being. Constrained choices is also a conceptual bridge between responsibilization and population health which could be further developed within an integrative biosocial perspective one might refer to as the social ecology of health and disease.
    Matched MeSH terms: Choice Behavior*
  18. Fitriani N, Kusuma MN, Wirjodirdjo B, Hadi W, Hermana J, Ni'matuzahroh, et al.
    Heliyon, 2020 Sep;6(9):e04967.
    PMID: 33015386 DOI: 10.1016/j.heliyon.2020.e04967
    In a slow sand filter, a biological layer consisting of alluvial mud and various types of microorganisms grows and attaches to the sand media and forms a matrix called schmutzdecke. Changes to several factors, including the quality of raw water, filtration speed, and the addition of media, affect the performance of the slow sand filter unit in producing treated water. Geotextiles can be equipped to improve the performance of a slow sand filter in removing pollutants. The selection of several factors that affect slow sand filter performance can be used as a starting point for the engineering system to determine the best pattern of performance behavior. This approach was carried out by looking at the dynamic behavior patterns of slow sand filter system performance in treating raw water. This research has not yet been conducted extensively. The dynamic behavior pattern approach to the performance of the slow sand filter unit was used to obtain the behavior model for the schmutzdecke layer on the filter. The system dynamic approach focused on treatment scenarios that can determine the behavior of the slow sand filter system. Several factors were assessed, including temperature, turbidity, nutrient concentration, algal concentration, bacteria and dissolved oxygen. Model simulation results show that the comparison of C: N: P values affected the performance of the schmutzdecke layer in removing total coli. The slow sand filter unit was capable of producing treated water with a total amount of coli equal to 0 on the C: N: P values of 85: 5.59: 1.25, respectively, and a 9 cm geotextile thickness.
    Matched MeSH terms: Choice Behavior
  19. Klein G, Rasmussen L, Lin MH, Hoffman RR, Case J
    Hum Factors, 2014 Dec;56(8):1380-400.
    PMID: 25509820
    We examined preferences for different forms of causal explanations for indeterminate situations. Background: Klein and Hoffman distinguished several forms of causal explanations for indeterminate, complex situations: single-cause explanations, lists of causes, and explanations that interrelate several causes. What governs our preferences for single-cause (simple) versus multiple- cause (complex) explanations?
    Matched MeSH terms: Choice Behavior*
  20. Batres C, Kannan M, Perrett DI
    Hum Nat, 2017 Sep;28(3):344-354.
    PMID: 28516361 DOI: 10.1007/s12110-017-9289-8
    Previous studies have found that individuals from rural areas in Malaysia and in El Salvador prefer heavier women than individuals from urban areas. Several explanations have been proposed to explain these differences in weight preferences but no study has explored familiarity as a possible explanation. We therefore sought to investigate participants' face preferences while also examining the facial characteristics of the actual participants. Our results showed that participants from rural areas preferred heavier-looking female faces than participants from urban areas. We also found that the female faces from the rural areas were rated as looking heavier than the female faces from the urban areas. Our findings are consistent with the hypothesis that familiarity may be contributing to the differences found in face preferences between rural and urban areas given that people from rural and urban areas are exposed to different faces.
    Matched MeSH terms: Choice Behavior*
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