91Ó°ÊÓ

Multiple choice: Sexual harassment In 1995 in the United Kingdom, the Equality Code used by the legal profession added a section to make members more aware of sexual harassment. It states that "research for the Bar found that over 40 percent of female junior tenants said they had encountered sexual harassment during their time at the Bar." This was based on a study conducted at the University of Sheffield that sent a questionnaire to 334 junior tenants at the Bar, of whom 159 responded. Of the 159,67 were female. Of those females, 3 said they had experienced sexual harassment as a major problem, and 24 had experienced it as a slight problem. a. The quoted statement might be misleading because the nonresponse was large. b. No one was forced to respond, so everyone had a chance to be in the sample, which implies it was a simple random sample. c. This was an example of a completely randomized experiment, with whether a female junior tenant experienced sexual harassment as the response variable. d. This was a retrospective case-control study, with those who received sexual harassment as the cases.

Step by step solution

01

Understand the Context

The study investigates the experience of sexual harassment among female junior tenants in the UK legal profession, specifically at the Bar, based on survey responses from a study conducted by the University of Sheffield.

02

Analyze the Quoted Statement

The statement mentions that over 40% of female junior tenants reported experiencing sexual harassment. This percentage includes both those who identified it as a major problem and those who saw it as a slight problem, calculated as (3 + 24)/67 ≈ 40.3%.

03

Consider Option A

Option A suggests the statement might mislead due to high nonresponse. The survey sent to 334 junior tenants only got 159 responses (47.6% response rate), possibly affecting the representativeness of the results.

04

Consider Option B

Option B describes the nature of the sample, suggesting it was a simple random sample because everyone had a chance to participate. However, nonresponse bias can still affect the sample's randomness.

05

Consider Option C

Option C incorrectly classifies this as a completely randomized experiment. This survey was observational, not experimental, as it did not involve controlled assignment of participants to treatment groups.

06

Consider Option D

Option D suggests the study is a case-control study, identifying 'cases' as those experiencing harassment. This is accurate because it examines existing records to identify subjects based on the outcome (harassment).

07

Determine the Correct Answer

Based on the analysis, the large nonresponse rate can indeed make the statement misleading, aligning with Option A. Options B and C are incorrect due to sampling and study classification inaccuracies. Option D is plausible in describing the study type but does not address the misleading aspect of the statement.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Nonresponse Bias

Nonresponse bias occurs when certain individuals included in a survey sample do not provide responses, leading to potential distortions in survey results. In the University of Sheffield study about sexual harassment at the Bar, only 159 out of 334 surveyed junior tenants responded. This low response rate of 47.6% means that over half of the potential respondents did not provide their data.

Nonresponse bias becomes a concern when the characteristics of respondents differ significantly from those who did not respond. In the context of this survey, it is possible that those who experienced sexual harassment either as a major or slight problem might be more likely to respond, or conversely, some might have chosen not to respond due to sensitivity or privacy concerns. The lack of input from nonrespondents could skew overall findings by underestimating or overestimating prevalence rates.

To address nonresponse bias, researchers can attempt follow-ups with nonrespondents, use statistical adjustments, or design future surveys to maximize response rates from the outset.

Survey Methodology

Survey methodology encompasses the strategies employed in designing and conducting a survey to collect data from a sample. The survey conducted by the University of Sheffield aimed to collect information from junior tenants regarding sexual harassment experiences within the UK legal system. Proper survey methodology ensures the data collected is high quality and representative.

Key elements of a good survey methodology include choosing a sample that represents the target population, designing a clear and unbiased questionnaire, and employing strategies to encourage higher response rates.

• **Sample Selection:** Each junior tenant should ideally have an equal chance of being included in the sample, supporting representativeness.
• **Questionnaire Design:** The questions need to be designed to minimize bias and should be clear, concise, and sensitive to the subject matter.
• **Response Rates:** Encouraging participation through reminders or incentives can improve data quality by reducing nonresponse bias.

Efficient survey methodology helps ensure the results are credible and can form a sound basis for conclusions or policy making.

Case-Control Study

A case-control study is a type of observational study commonly used in research to identify factors that may contribute to a particular outcome. In the given context, understanding sexual harassment incidences at the Bar can be viewed through this lens.

In a case-control study, there are two groups: cases and controls. Cases are those who have experienced the outcome of interest—here, sexual harassment as identified in the survey responses. Controls would be those who did not report such experiences.

The study method entails comparing the two groups to explore what might differentiate them. It effectively helps in identifying potential risk factors or associations with the outcome. Although case-control studies can provide insight, they don't inherently establish causation, primarily due to the retrospective nature of the research and possible recall bias. Thus, while Option D correctly identifies the study's framework about identifying cases, it should be recognized within the broader context of its limitations and applications in social research.