Discussion: Developing A Research Hypothesis And Selecting A Sampling Method And Technique

Developing a elimination theory (besides referred to as the cupel hypothesis or alternative hypothesis), and primeing participants to cupel the theory, are nice components for inauguration a con-over. This theory is your prognostication of what procure really becasualty in your con-over. This theory should besides prophesy the contemplated relations unformed your separated fractions changeable(s), which you treat, and how the fabrication procure pretend the leaning changeable(s), which estimate the outcome.

If your theory propounds, "participating in psychotherapy procure contract trouble," psychotherapy is the fractions changeable. That is, your cupel procure involve people who go through psychotherapy and others who do not. Afterward you procure parallel your participants on an trouble flake to see if the psychotherapy really contractd trouble. In this contingency, the estimate of trouble behind the citationure is the relying changeable.

Before cupeling a theory, you procure deficiency to reflect the population of concern from which you procure reinforce a exemplification of people to share in your con-over. There are two rules of sampling to reflect. One rule is presumption sampling, and the uncertain corresponding techniques (e.g., independent aimless sampling, stratified sampling), wherein integral component in a population has a casualty to be involved in the exemplification. When integralone in a population is not available, you procure deficiency to lean on the avoid rule, which is nonpresumption sampling, and the uncertain corresponding techniques (e.g., snowball sampling, freedom sampling).

For this Discussion, you procure establish and prime a theme of your dainty and eliminate your own elimination theory fixed on your interpretation of the theme. You procure besides exercise your interpretation of sampling rules and techniques that can be utilized to cupel your theory as polite as the hypotheses generated by your colleagues.

To prepare:

  • Read Chapter 2 and Chapter 8 of your series citation.
  • Read the assigned pages from Chapter 6 of your series citation.
  • Go to the “Psychology Topics” web page on the APA website. Choose one theme that concerns you, and eliminate your own elimination theory fixed on that theme.
  • Think about what you might prime as the fractions and leaning changeables in a con-over you could cunning to cupel your theory.
  • Consider how you would prime your exemplification and reinforce participants to cupel your theory.

With these thoughts in mind:

By Day 3

  • Provide a shabby term of your theme (fewer than 50 say). Note: Include your theme in the "Subject" scope of your column.
  • Clearly propound the elimination theory you generated for the theme you separated, and standard the fractions changeable and leaning changeable in your theory.
  • Explain the sampling rule (presumption or nonprobability) and the detail technique (e.g., unsophisticated aimless sampling, independent aimless sampling, stratified sampling, throng sampling, snowball sampling, freedom sampling) that would be imaginative to cupel your contemplated theory.
  • Explain how the contemplated sampling technique would be carried out as it applies to your contemplated con-over fancy (i.e., how you would use this rule to reinforce participants).
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