The traditional tests of 3 or more groups are two-tailed.

Tests were considered significant if their associated P value was 0.05 or less (two-tailed).

A two-tailed test was applied to differences between the outcomes for the program and control groups.

Two-tailed results are reported as P values within the corresponding figures.

The treatment has an effect" is the uninformative result of a two-tailed test. "

Differences between groups and regions were analysed using two-tailed t tests.

Its appearance has been said to resemble a two-tailed box kite.

Statistical significance was accepted at a two-tailed p value of less than or equal to 0.05.

The statistical significance of impact estimates was calculated using a two-tailed test.

Each of these statistics can be used to carry out either a one-tailed or two-tailed test.

A two-tailed cat-spirit with red hair and a large bosom.

The critical value will depend upon N (the number of pairs included in the analysis) and whether the test is one- or two-tailed.

The test statistic is the total number of heads and is two-tailed.

All probabilities reported are based on two-tailed tests as each comparison had two possible directions.

A two-tailed test was used to determine whether the scores were statistically significantly different from those of the Toronto group.

But you know the night of that party, two-tailed dogs will have their day on Moore Street.

For a two-tailed test we must also consider tables that are equally extreme, but in the opposite direction.

Others, however, suggest that you should always report the standard, two-tailed t-test probability.

So they are also sometimes known as "two-tailed spiders".

Two-tailed significance tests were used throughout, and continuity corrections applied where appropriate.

Notice that this is a two-tailed or two-sided test.

He was wearing a crisp white shirt, black trousers, and a tailored two-tailed coat.

Note that this is a two-tailed test, rather than a one-tailed test.

Significance tests were two-tailed and at level 0.05.

The p-values should be designated as one- or two-tailed.