**Question:**

Design an experiment to test the hypothesis that female-only math classes (as opposed to classes with a mix of genders) increase the math skills of adolescent females. First choose a design: either posttest-only or pretest-posttest. Next, decide on operational definitions of the independent and dependent variables. Then, design selection procedures that use the matched pairs procedure and make a good case for your selection of the matching variable.

**Answer:**

IV- Type of students in a class, (2 levels- female-only class and females in mixed class)

operational definition- 15-year-old female students in Grade 10 belonging from an all-girls school and from a coed school from XYZ place in the USA

DV- the level of math skill (as determined by a maths test )

operational definition- Grade 5 maths as determined by the state board of education

(the test will be administered to only the females from both classes)

**First choose a design: either posttest-only or pretest-posttest. Next, decide on operational definitions of the independent and dependent variables. Then, design selection procedures that use the matched pairs procedure and make a good case for your selection of the matching variable.**

The experiment will follow a quasi-experimental research pattern. The 2 groups are the 20 female students of 15 years of age in grade 10 who belong to an all-girls school and 20 female students of 15 years of age in grade 10 who belong to a coed school, both groups belonging to XYZ place in the USA (write any place that you feel like ) The intervention will be the same for both groups ie a maths skill improvement program based on 10th-grade student level. A pretest post-test design will be adopted because that is more effective to determine the changes.

PRETEST- POST TEST DESIGN

Both groups are given a maths test at the beginning (pretest) of the course to check their knowledge and maths level before the intervention. A matched group method will be adopted to select the 20 students from each class. Those who got similar answers on the pretest will be paired up together thus there will 20 pairs in total participating in the program. The maths skill intervention is given to both groups followed by a post-test maths test. Any differences can be attributed to the type of class setting.

A post-test will be given to both groups, Female students who score the same marks will be paired together. The intervention will be given to both groups and then a post-test administered to check the difference among the pairs.