Give 2 examples of studies that can use a t-test for dependent samples in the education...

Give 2 examples of studies that can use a t-test for dependent samples in the education field?

Solutions

Expert Solution

The dependent t-test (also called the paired t-test or paired-samples t-test) compares the means of two related groups to determine whether there is a statistically significant difference between these means.

You need one dependent variable that is measured on an interval or ratio scale (see our Types of Variable guide if you need clarification). You also need one categorical variable that has only two related groups.

A dependent t-test is an example of a "within-subjects" or "repeated-measures" statistical test. This indicates that the same participants are tested more than once. Thus, in the dependent t-test, "related groups" indicates that the same participants are present in both groups. The reason that it is possible to have the same participants in each group is because each participant has been measured on two occasions on the same dependent variable.

example :

you might have measured the performance of 10 participants in a spelling test (the dependent variable) before and after they underwent a new form of computerised teaching method to improve spelling. You would like to know if the computer training improved their spelling performance. Here, we can use a dependent t-test because we have two related groups. The first related group consists of the participants at the beginning (prior to) the computerised spell training and the second related group consists of the same participants, but now at the end of the computerised training.

Does the dependent t-test test for "changes" or "differences" between related groups?

The dependent t-test can be used to test either a "change" or a "difference" in means between two related groups, but not both at the same time. Whether you are measuring a "change" or "difference" between the means of the two related groups depends on your study design. The two types of study design are indicated in the following diagrams.

The dependent t-test can look for "differences" between means when participants are measured on the same dependent variable under two different conditions.

example:

youmight have tested participants' eyesight (dependent variable) when wearing two different types of spectacle (independent variable).

Please rate!

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Give 2 examples of studies that can use a t-test for independent samples in the education...

Give 2 examples of studies that can use a t-test for independent samples in the education field.

1) Give 2 examples of studies that can use a t-test for independent samples in your area of study or interest.

1) Give 2 examples of studies that can use a t-test for independent samples in your area of study or interest. 2) Give 2 examples of studies that can use a t-test for dependent samples in your area of study or interest. 3) What are TWO interesting insights you know about hypothesis testing?

Assignment 4: T test for Dependent samples Directions Conduct a T test for Dependent Samples to...

Assignment 4: T test for Dependent samples Directions Conduct a T test for Dependent Samples to answer the questions based on the following scenario. (Assume a nondirectional research hypothesis (two-tailed test) and a level of significance of .05) Scenario To further examine the school performance scores of the district, the superintendent identified schools within the district that could be matched to schools from surrounding districts using a series of demographic characteristics such as size, socio-economic status, and percent special education...

Assignment #4: T test for Dependent Samples Directions: Conduct a T test for Dependent Samples to...

Assignment #4: T test for Dependent Samples Directions: Conduct a T test for Dependent Samples to answer the questions based on the following scenario. (Assume a nondirectional research hypothesis (two-tailed test) and a level of significance of .05) To further examine the school performance scores of the district, the superintendent identified schools within the district that could be matched to schools from surrounding districts using a series of demographic characteristics such as size, socio-economic status, and percent special education students....

What is the appropriate statistical analysis to use: t-test for two independent samples, t-test for dependent...

What is the appropriate statistical analysis to use: t-test for two independent samples, t-test for dependent samples, ANOVA, or chi-square test of independence? Please identify and explain why it is appropriate. is asking which test should i use for each question below and why (a) A study was conducted to see whether monetary incentives to use less water during times of drought had an effect on water usage. Sixty single family homeowners were randomly assigned to one of two groups:...

Indicate which test (dependent samples t-test, independent samples t-test, independent samples z-test) is most appropriate for...

Indicate which test (dependent samples t-test, independent samples t-test, independent samples z-test) is most appropriate for the following situation: i. Comparison of mean recycling participation between 9 large cities and 11 small cities ii. Comparison of the weights of 16 Toronto Maple Leaf rookies at the beginning versus the end of the regular NHL season. iii. Comparison of fin length of 35 male and 37 female brook trout sampled in Spruce Lake, Nottingham Forest. iv. Comparison of the mass of...

1). What is the difference between a t-test for independent samples and a t-test for dependent...

1). What is the difference between a t-test for independent samples and a t-test for dependent samples? 2). Provide one study that would be analyzed using a t-Test for dependent samples; then provide one study that would be analyzed using a t-Test for independent samples

Provide an example of a research plan that would use an dependent samples t-test. Include in...

Provide an example of a research plan that would use an dependent samples t-test. Include in your example the IV & DV and what you will do with the data you are collecting (for example, testing group 1 and group 2).

2.2. Indicate which test (paired samples (ie dependent) t-test, independent two samples t-test, one-sample t-test, independent...

2.2. Indicate which test (paired samples (ie dependent) t-test, independent two samples t-test, one-sample t-test, independent samples z-test) is most appropriate for the following situations : A. Comparison of weight gain of two groups of 18 cows where one group was raised following standard practices and the other group was raised following “organic” standards. B. Comparison of scores on a fitness test of Olympic-class distance runners (n=20) with the national average score of people of a similar age range (22-31...

What is the difference between a t-test for 2 independent samples vs. a paired t-test? Give...

What is the difference between a t-test for 2 independent samples vs. a paired t-test? Give an example of when a Chi-squared test would be used. How would you find the degrees of freedom (df) for one of these tests?

Subjects