post hoc comparison

USAGE SUMMARY

The phrase "post hoc comparison" is correct and usable in written English.
It is typically used in statistical analysis or research contexts to refer to comparisons made after an experiment or study has been conducted, often to identify differences between groups. Example: "After conducting the experiment, we performed a post hoc comparison to determine which treatment groups showed significant differences in outcomes."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

38 human-written examples

The Fischer LSD test was used for post hoc comparison.

The Journal of Headache and Pain

Later, We have performed (N *N ) post hoc comparison with Shaffer's statistical test.

Journal of Cheminformatics

Post hoc comparison test (Tukey's multiple comparison test) was used for inter-group comparison.  .

Progress in Orthodontics

Later, we performed (N *N ) post hoc comparison with Shaffer's statistical test.

Journal of Cheminformatics

Levene's statistic revealed equal variances, resulting in the use of Bonferroni's post hoc comparison.

Fields Mathematics Education Journal

This technique is commonly known as a post hoc comparison test.

Plosone

Human-verified similar examples from authoritative sources

Similar Expressions

22 human-written examples

We also did a post-hoc comparison with Wilcoxon signed-rank test.

The Journal of Headache and Pain

All ANOVAs were followed by Fisher's post-hoc comparison matrices.

Plosone

If required, post-hoc comparison by Bonferroni test was performed.

Plosone

The Tukey test was used for post-hoc comparison.

Plosone

Tukey's HSD procedure was used for post-hoc comparison of means (alpha level = .05).05

Plosone

Expert writing Tips

Best practice

When reporting a "post hoc comparison", clearly specify which test (e.g., Tukey's, Bonferroni) was used, as different tests have varying levels of stringency and are suited for different types of data.

Common error

Avoid performing multiple "post hoc comparisons" without adjusting the significance level (e.g., using a Bonferroni correction). Otherwise, you increase the risk of committing a Type I error (false positive).

Linguistic Context

The phrase "post hoc comparison" functions as a noun phrase that describes a specific type of statistical analysis. As Ludwig AI confirms, it's commonly used to refer to tests performed after an initial analysis (like ANOVA) to determine where significant differences lie between groups.

Expression frequency: Common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

The phrase "post hoc comparison" is a noun phrase widely employed in scientific and statistical contexts to describe statistical tests performed after an initial analysis to identify specific group differences. As Ludwig AI indicates, its usage is grammatically correct and common in academic and research settings. Key considerations include specifying the type of "post hoc" test used and adjusting for multiple comparisons to avoid errors. Alternative phrasing includes "follow-up comparison" or "subsequent comparison". Given its technical nature, it's important to use "post hoc comparison" accurately and precisely, particularly in formal writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

follow-up comparison

Emphasizes the sequential nature of the comparison, occurring after a primary analysis.

subsequent comparison

Highlights that the comparison is done at a later time or stage.

a posteriori comparison

Uses a Latin term to indicate a comparison based on observation, similar to "post hoc".

pairwise comparison after ANOVA

Specifies a particular context in which a post hoc comparison is carried out.

multiple comparison procedure

Focuses on the statistical method used to conduct multiple comparisons.

after-the-fact comparison

Informal way to say that a comparison happened after something already occurred.

comparison following analysis

Highlights that the comparison is conducted after the initial analysis phase.

unplanned comparison

Suggests that the comparison was not initially planned as part of the study design.

secondary comparison

Indicates a comparison that is not the primary focus of the study.

exploratory comparison

Implies a comparison done to explore the data and generate hypotheses.

FAQs

What does "post hoc comparison" mean in research?

In research, a "post hoc comparison" is a statistical test performed after an analysis of variance (ANOVA) to determine which specific groups differ significantly from each other. It's used when the ANOVA indicates a significant overall effect, but doesn't pinpoint where the differences lie.

When should I use a "post hoc comparison"?

Use a "post hoc comparison" after you've conducted an ANOVA and found a statistically significant difference between groups. These tests help you identify which specific groups differ significantly from one another. Avoid using them if your initial ANOVA is not significant.

What are some common types of "post hoc comparison" tests?

Common "post hoc comparison" tests include Tukey's HSD, Bonferroni correction, Scheffé's method, and Fisher's LSD. The choice depends on factors like the number of comparisons and the desired level of stringency.

Is there a synonym for "post hoc comparison"?

While there isn't a direct synonym, you could use terms like "follow-up comparison" or "subsequent comparison". The phrase "a posteriori comparison" is also used, especially in more formal or academic contexts.