Types of Studies and Sampling Methods

Front

What are the types of studies in research?

Back

1. Experimental Studies 2. Observational Studies (e.g., Cohort, Case-Control, Cross-Sectional)

Front

What is a treatment in an experiment?

Back

A treatment is a specific condition applied to subjects in an experiment to observe its effects.

Front

How many treatments are involved in an experiment with 2 types of pots and 2 watering schedules?

Back

4 treatments (2 pots x 2 watering schedules).

Front

What is a Segmented Bar Graph used for?

Back

To show the association between categorical variables, displaying the proportion of each category.

Front

What is a Prospective Study?

Back

A study that follows subjects forward in time to observe outcomes.

Front

What is a Retrospective Study?

Back

A study that looks back at data collected in the past to find correlations or outcomes.

Front

What is marginal distribution?

Back

The distribution of a single variable in a contingency table, showing totals for each category.

Front

What is a placebo?

Back

A control group in an experiment that receives a non-treatment to compare against the treatment group.

Front

What is the purpose of a control group in an experiment?

Back

To provide a baseline to compare the effects of the treatment.

Front

What is a Randomized Experiment?

Back

An experiment where subjects are randomly assigned to different treatment groups to eliminate bias.