Sentences with phrase «samples t test»

The paired - samples t test that was calculated for this item demonstrated that pre-test perceptions of the physical attractiveness of a female dater were 4.85 (sd = 1.24) before negative communication ensued while post-test perceptions of the physical attractiveness of a female dater were 4.39 (sd = 1.49) after negative communication ensued.

The paired - samples t test that was calculated for this analysis indicated that pre-test perceptions of the physical attractiveness of a male dater yielded a mean of 4.65 (sd = 1.21) on a 7 - point continuum whereas post-test perceptions of the physical attractiveness of a male dater yielded a mean of 4.71 (sd = 1.32) on a 7 - point continuum.

Paired samples t test between baseline and follow up assessment yielded no statistically significant differences at two times period (Table 6).

But using independent samples t test, none of those difference reach at a significant level (P < 0.05).

We estimated differences in resource use and costs with the independent samples t test procedure and differences in effects with odds ratios and weighted incidence rates from the cohort study.

These individual - level accuracy maps were then smoothed with a 3 - mm FWHM kernel, warped to Talairach space, and the group of subjects» maps was submitted to a directional one - sample t test against 0.25 to determine whether any regions reliably encoded information about the identity of the agent or patient across subjects.

The functional brain networks showed a clear small - world organization, expressed by λ ≈ 1 (c) and γ ≫ 1 (d) for T ≥ 0.3 (1 - sample t test, df = 18, all p < α of 0.01, Bonferroni corrected for multiple comparisons of T).

The functional brain networks showed a clear small - world organization for 0.3 ≤ T ≤ 0.5 (Fig. 1a — d), expressed by L ≈ Lrandom and λ ≈ 1 for T ≤ 0.5 and C ≫ Crandom and γ ≫ 1 for T ≥ 0.3 (one - sample t test, all p < α of 0.01, Bonferroni corrected for multiple comparisons of T, df = 18), indicating a small - world organization (Sporns et al., 2004; Stam, 2004; Achard et al., 2006; van den Heuvel et al., 2008b).

The «two - sample t test» function was used for all calculations, with the critical comparison in each study used to calculate power.

Means with different superscript letters are significantly different, P < 0.05 [repeated - measures ANOVA with the Bonferroni correction applied to pairwise post hoc comparisons (weight, energy intake, and resting metabolic rate) or paired - samples t tests (fat mass and percentage body fat)-RSB-.

In case of a significant interaction, paired - samples t tests were performed to determine training effects within treatment groups or within types I or II fibers.

Single sample t tests were used to compare changes in weight from a zero baseline.

Independent - samples t tests were used to determine group differences in either the pre - or the postintervention values.

Child development and perinatal outcomes were compared with population norms using one - sample t test and binomial analyses.

Initial analyses examined potential differences in participant characteristics and demographics across intervention groups at baseline by using independent samples t tests for continuous variables and χ2 analyses for categorical variables.

To examine maintenance of treatment gains in CBCT from posttreatment to 3 - month follow - up, paired samples t tests were conducted.

Paired - samples t tests showed that the PPD mothers reported significantly less externalizing problems for their daughters than the teachers did (p <.05).

Independent samples t tests indicated there were no gender differences on the HADS.

Using paired sample t test; significant differences on the PBI subscales «Care» and «Control» were found between Singaporean mothers and Singaporean fathers (see Table 2).

Groups were compared using Chi squares and two - tailed independent samples t tests.

First, mean scores on temperament dimensions and scales were compared between the referred and population group using independent samples t tests.

Categorical data were compared with χ2 test, whereas continuous 2 - group comparisons were made with 2 sample t tests or Mann Whitney U tests as dictated by data distributions.

Australian participants completed an anonymous online survey, and overall means were calculated for each group and compared using independent samples t tests.

Paired samples t tests revealed statistically significant decreases in SDQ Conduct Problems and Emotional Symptoms scores, and McNemar's tests showed a statistically significant decrease in the proportion of Conduct Problems cases.

However, paired sample t tests revealed that, at pretest, fathers and mothers did not differ significantly in reports of parenting stress, or any of the adolescent symptoms or problem behaviors.

Not exact matches

After reserving the first year for initial momentum calculations, they segment each sample into halves for in - sample optimization of B and T and out - of - sample testing.

The snacks were divided into subgroups based on product type (fruit drink snacks, licorice, non-dairy ices, ice creams and savories) and their caloric content per portion was compared with the caloric content of reference products derived from the Dutch Food Composition Database [13], using one - sample t - tests.

And if you're serious about the testing, the next thing you do [after a low T - E ratio test result] is administer a CIR test on the same sample.»

Second, comparisons in milk waste data were studied using an unequal sample size, unequal variance t - test and the degrees of freedom for the test were calculated using the Welch - Satterthwait equation [21].

A paired - samples t - test demonstrated significant differences with small to medium effect sizes in the before and after scores for all three subscales.

The researchers also implanted untreated — or «as - cast» — alloy, finding that both the as - cast samples and T - 5 heat - treated alloys showed good biocompatibility and promoted bone growth in test animals.

Searching for T cells that had infiltrated the tumors, they collected as many as 50 T cell samples from a single tumor; next, the team tested each batch of T cells against other tumor samples from the same patient.

Student's t tests excluding the outlier indicated a p - value of < 0.04 for the remaining five pandemic H1N1 samples compared with the IgG memory and germinal center (GC) cells or the primary IgG plasmablast responses (0.2 with EM included) and a p - value of < 0.0001 against the IgM populations.

Two - tailed t - test was used to evaluate the significance of the results between two samples.

First, in order to see if the used olfactory stimuli differed in their perceived pleasantness and intensity, the pleasantness and intensity scores of the olfactory stimuli were analyzed with a t - test for independent samples.

A two - sample T - test was applied to assess statistical significance (alpha = 0.05).

For the comparison of the ROC curves, we focused on the sensitivity, comparing the sensitivity between different technologies and samples with paired two - sample Student's t - tests.

After checking for normality using the Shapiro - Wilk test, one - sample t - tests were conducted to compare the overall mean sensitivity against chance - level (0.5), and mean bias against 0, as well as paired t - tests to compare mean sensitivity and bias for the two LEVELS OF EMBEDDING separately.

Statistical significance was measured using parametric testing, assuming equal variance, in the majority of experiments with standard t tests for 2 paired samples used to assess difference between test and control samples.

When comparing all technologies, the overall best sensitivity was achieved by HiSeq2000 (99.15 % for sample MB24) followed by Complete Genomics (98.38 % sensitivity)(paired t - test on percentage sensitivity comparing Complete Genomics 50x and HiSeq2000 30x, p = 0.008651).

Post hoc paired samples t - tests were then run, when appropriate, based on results of the ANOVA.

The results show an increase in disposition scores from pre -(3.580, SD = 0.499) to postsurvey (4.705, SD = 0.276) of 1.125 (95 % CI = 0.807 — 1.443), and a paired samples t - test revealed that the mean difference was statistically significant (t = 7.649; p <.001).

Mean scores were then calculated across the pre - and postsurvey administrations by item as well as by category and analyzed using a paired samples t - test.

Results of paired - samples t - tests suggest that Tutorials had a statistically significant impact on middle and high school student posttest achievement compared to pretest performance.

The researchers used an unpaired samples t - test for comparing pre - and post-program surveys and analyzed qualitative data using coding to identify emergent themes, a model building method, and triangulation to ensure the reliability and validity of findings.

We used paired - sample t - tests to compare mean ratings of various sources of leadership.

On this «sample» product which was not updated and not refreshed for these tests we could not get 3DMark06 to complete successfully but you should expect scores around 1500 based on other Baytrail - T platforms we've tested.

That shouldn't» t be a problem because a reticulocyte count is usually a standard part of the CBC / WBC test panel that the vet ordered to be run on the blood sample taken from your cat or dog.

Finally, Hannibal's tumor sample made it to Breen's lab at NC State, where a genomic test and pathology report confirmed a diagnosis of T cell lymphoma.

The null hypothesis test (both t and z) assumes you are sampling a normal data distribution.