a pretest/protest experimental design is that which involve the taking down or recording down of measurements before and after a treatment.pretest-posttest designs are a more suitable experimental design that is usually used when comparing participant groups and also measuring the differences or the degree of change that happens as a result of treatments. there are various forms/ways of analyzing an experimental data of which there is the t-test. t-test is usually used to measure the differences between two groups in an experiment.
comparison of the differences as a form of data analysis of the two variable(husband/wife) in a pretest/protest design using the t-test will show you if its a directional hypothesis or a non directional hypothesis and also clearing shows the relationship when comparing the two variables.
It is evident and stated clearly because of the precisely described three branches of government and how they work together as well as counter each other.