OBJECTIVE The characteristics of the 36 item Medical Outcome Short Form Health Study Survey (SF-36) questionnaire, designed as a generic indicator of health status for the general population, allow it to be self-administered or used in personal or telephone interviews. The main objective of the study was to compare the telephone and self-administered modes of SF-36 for a population from Girona ...

Ask experts what would be an important reduction in amount consumed. Need some idea of the SD of a within-child difference in consumption from a four hour period in one day to a four hour period in another day. Could do a pilot study with say 10 children measured [without any intervention] on two different days and get the SD of the 10 differences. Then use sample size formula for 1 sample t-te...

BACKGROUND Traditionally, postal surveys or face to face interviews are the main approaches for health researchers to obtain essential research data. However, with the prevalence of information technology and Internet, Web-based surveys are gaining popularity in health research. OBJECTIVE This study aims to report the process and outcomes of recruiting Chinese migrants through social network ...

Current research supports the role of metacognitive strategies to enhance reading comprehension. This study measured the effectiveness of online versus face-to-face metacognitive and active reading skills lessons introduced by Biology faculty to college students in a nonmajors introductory biology course. These lessons were delivered in two lectures either online (Group 1: N = 154) or face to f...

BACKGROUND Available models for designing the structure of specific simulation-based learning (SBL) activities need further analysis. METHOD This retrospective study was conducted using independent samples t tests to examine differences in mean clinical nursing judgment development scores between students who completed a nursing program prior to the introduction of an experiential learning th...

Results 46% of the study population were smokers. Independent samples t-test revealed no significant difference between how smokers and nonsmokers reported the main domains of their quality of life. However, smoking had significant impact on two specific parameters. Smokers recorded significant lower scores (3.62) than nonsmokers (3.86) in satisfaction from overall health, (p = 0.04). Furthermo...

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The ability to kick with both feet is regarded as a desirable skill in high level soccer players; however, most players display a dominance of kicking ability on one side. This study investigated the characteristics of asymmetry in two types of soccer kick. A low drive and a chip kick from both the left and right foot of 12 élite junior soccer players were analysed. Kick velocity, kick accuracy...

Determination of the role of subject experience in the development of accurate color difference formulas is of potentially critical concern. As part of a larger multivariable experiment investigating the minimum inter- and intra-subject variability possible among a set of subjects, a study was conducted to compare the performance of 25 novice versus 25 expert visual assessors for a set of 27 pa...

In biomedical research, researchers frequently use statistical procedures such as the t-test, standard analysis of variance (ANOVA), or the repeated measures ANOVA to compare means between the groups of interest. There are frequently some misuses in applying these procedures since the conditions of the experiments or statistical assumptions necessary to apply these procedures are not fully take...