Identifying the Properly Structured Independent Variable in a Stroke Patient Study

QUESTION

The aim of this study was to measure the effect of a movie-based-nursing intervention on depression levels in stroke patients. Sixty participants were randomly assigned into groups for this study. The first group watched a movie that addressed motivation for rehabilitation at the beginning of their scheduled physical therapy sessions. The second group received standard stroke rehabilitation at their scheduled physical therapy sessions. At the end of ten weeks, depression scores were measured for both groups. Researchers found that depression scores were significantly lower in the group that received the movie-based nursing intervention than in the group that received standard stroke rehabilitation. Which of the following is a properly structured IV? Question 1 options: type of intervention – movie-based or standard care – interval level of depression – number – ordinal level of depression – number – interval type of intervention – movie-based or standard care – nominal

ANSWER

Identifying the Properly Structured Independent Variable in a Stroke Patient Study

Introduction

In research, properly structured independent variables (IVs) are crucial for ensuring the validity and reliability of study findings. They play a fundamental role in investigating the effects of interventions or conditions on dependent variables. In the context of a study aimed at measuring the effect of a movie-based nursing intervention on depression levels in stroke patients, we must identify the properly structured IV. This essay will analyze the provided information and determine the correct IV among the options.

Defining the Independent Variable

The independent variable in this study represents the factor that researchers manipulate or categorize to observe its impact on the dependent variable. In this case, the IV is the type of intervention administered to the two groups of stroke patients: the movie-based nursing intervention and standard stroke rehabilitation.

Correctly Structured Independent Variable

Let’s examine each option provided to determine the properly structured IV:

Type of Intervention – Movie-Based or Standard Care – Interval Level of Depression – Number – Ordinal Level of Depression – Number – Interval Type of Intervention – Movie-Based or Standard Care – Nominal

Out of these options, the properly structured IV is “Type of Intervention – Movie-Based or Standard Care – Nominal.” This structure categorizes the independent variable into two distinct, non-overlapping groups: “Movie-Based” and “Standard Care.” Nominal variables are categorical and represent different categories or groups without implying any order or ranking. In this study, the researchers assigned stroke patients to one of these two categories, either receiving the movie-based nursing intervention or standard care, making it the most appropriate and properly structured independent variable.

Conclusion

In the study aimed at measuring the effect of a movie-based nursing intervention on depression levels in stroke patients, the properly structured independent variable is “Type of Intervention – Movie-Based or Standard Care – Nominal.” This classification accurately represents the two distinct groups of participants based on the intervention they received, without implying any order or ranking. Properly defining and structuring the independent variable is essential for the study’s integrity and the interpretation of its findings.