Briefly discuss validity and reliability of a measurement

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Reference no: EM133517930 , Length: word count:600

Research And Evidence In Practice

This task is designed to help you develop your skills in analysing data and interpreting both descriptive and inferential statistics. Based on the scenario below you will briefly discuss the validity and reliability of a measurement instrument; report on and interpret the statistical analysis of a data set; summarise the findings; and finally identify limitations of the study and suggest alternative approaches for future studies.

Case Scenario: We are consistently informed by research studies, (and even the media), that daily physical activity has many positive benefits for physical health, but can such activity also have a positive impact on our metal health? In a bid to increase community awareness about the benefits of daily exercise for improved mental health, BeyondBlue has asked your team to help them review some of the research in this area and analyse some data measuring the number of hours per week a person engages in exercise and their score on a depression scale, to provide evidence that this is indeed the case. Your analysis will help BeyondBlue write a grant to obtain Government funding to develop an advertising campaign for television and social media.

Dataset details: 30 participants recorded their average hours of exercise each week for 6 weeks. Participants also completed the self-administered Beck Depression Inventory (BDI-II) on one occasion at the end of the 6-week period.
• Groups: One Group of Participants
• Measure 1: Mean number of hours of exercise (per week).
• Measure 2: Beck Depression Inventory (BDI - II) score

What this measure is used for?

Characteristics of the measure, for example:
• Number of items (questions)
• Type of items (e.g. The measure uses a scale from X to X, where a low score indicates X and high score indicates X)
• What a high or low score on the scale means in terms of the construct it is measuring

Review available research that has reported on the validity and reliability of the measure and provide a summary of this

Enter the data provided above into the excel spreadsheet and generate a graph and results for your study. Copy and paste a screen shot of the completed spreadsheet to your written report.

For each of the following statistics briefly report what information it provides:
• Mean
• Standard deviation
• Confidence interval
• r value
• P value

Provide a brief explanation of the results

Provide suggestions as to how BeyondBlue should incorporate these results into a grant application to obtain Government funding to develop an advertising campaign for television and social media.

Briefly describe two limitations to this study and provide suggestions as to how they could be rectified in a subsequent study.

Attachment:- Research Report.rar

Reference no: EM133517930

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