Is a Testable Hypothesis Quantitative or Qualitative?

Hypothesis is used mainly in quantitative research whether proposition is used in qualitative research.As every hypothesis is important to be proved statistically so qualitative research do not use this generally. There is no difference. There can be a research question or hypothesis.

Is a testable hypothesis quantitative or qualitative research?

In qualitative research, a hypothesis is used in the form of a clear statement concerning the problem to be investigated. Unlike in quantitative research, where hypotheses are only developed to be tested, qualitative research can lead to hypothesis-testing and hypothesis-generating outcomes.

Is purely observational data quantitative or qualitative?

The data that are collected in observational research studies are often qualitative in nature but they may also be quantitative or both (mixed-methods). There are several different types of observational research designs that will be described below.