Question

I need to identify what type of study (experimental, correlational, quasi-experimental, or descriptive) each statement represents. I don't understand how to identify the keywords that indicate which type of research or how to determine the type of research just by one sentence.

1. The purpose of this study was to examine the relationship among stress, anxiety, and blood pressure in persons with a family history of strokes.

2. The purpose of the study was to compare the effects of a patient-teaching intervention with usual care in community clinic patients.

3. The purpose of the study was to compare the effect of different time exposures to sunlight on in vitro cultures of Acinetobacter.

-- I think 3 is Experimental. The keywords that lead me to identify that this was an experimental study were, Compare the Different Times of sun exposure to the Cultures. I came to this conclusion because the controlled independent variable, the time exposure to sunlight, was manipulated to identify the the length of time and the effects to the experimental group, the Acinetobacter cultures. The cultures were randomly selected for the amount of sun exposure time.

4. The purpose of the study was to explore the characteristics of health care organizations that high rates of employee satisfaction.

Answer 1

answer 1:correlational study;study used to understand the existence of a relationship of two or more variables to an independent variable.it does not study the causation.

key words :examine relationship among the stress ,anxiety and blood pressure in patients with family history of stroke

stress,anxiety,blood pressure-------family history of stroke:do they correlate??(purpose of study)

explanation:The study is trying to examine the relationship of the variables stress,anxiety and blood pressure to the persons with family history of stroke without altering this independent variable.The correlation may be positive,negative or zero corelation for each of these factors in patients with family history of stroke ;hence it is a correlational study.

answer 2:quasi experimental study: This study used to evaluate interventions (study group) and their effect on a target population as compared to control group (no intervention)without randomization.

The quasi-experimental study design with two groups is as follows.

group a before intervention----->intervention------>group a after intervention ::compare to ::group b no intervention

key words: compare effects of patient teaching intervention with usual care

explanation:in this study,the purpose of the study is to compare the effects of patient-teaching intervention group to the usual care group without using any randomization;hence it is a quasi experimental study

answer 3:experimental study is the perfoming of an experiment using various factors in a controlled manner and placing manipulations on the factor to be studied by the investigator.

keywords:exposure of Acinetobacter to sunlight of different durations(experiment performed)

explanation:In this study, the independent variable sunlight is manipulated to different durations(experimental) and the effect is studied on dependent variable, that is, in vitro cultures of Acinetobacter;hence it is an experimental study,

answer 4:descriptive study:In this study,the characteristics of a population are surveyed,studied and reported;there is no study of causation,no experiment,no variables,no randomization.the idea is to describe the characteristics of the population.

key words:explore the characteristics  of the health care organizations with higher employee satisfaction rates.

explanation:The purpose of the study is to explore (survey and study,no intervention,no experiment,)the characteristics of the health care organizations with higher employee satisfaction rates.The study is aimed to answer the question ,what are the characteristics of the health care organizations employees with higher satisfaction rates? ,which is typically the aim of a descriptive study.The purpose is to describe the characterstics of the specified population and hence it is a descriptive study.