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#9 Location In The Research Process Formulating Research Questions Previous Research Craft Knowledge Appropriate Design Ap...
Visual Analysis <ul><li>Only interventions which lead to marked changes in targets will be viewed as significant </li></ul...
Visual Analysis <ul><li>Changes in means </li></ul><ul><ul><li>Changes in average rates of performance when phases shift <...
Visual Analysis <ul><li>Overlap </li></ul><ul><ul><li>How many data point values co-occur across phases </li></ul></ul><ul...
Visual Analysis <ul><li>Changes in trend </li></ul><ul><ul><li>Changes in the systematic increase or decrease in behavior ...
Visual Analysis <ul><li>Data that have minimal variability, high consistency, relatively long phases, changes in means, le...
Lab Assignment <ul><li>Download the data set “ SOWK 468 SSD Data Sets,”  and the file ”Visual Analysis Instructions” </li>...
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Lecture 9 single subject designs ii (in lab)

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Lecture 9 single subject designs ii (in lab)

  1. 1. #9 Location In The Research Process Formulating Research Questions Previous Research Craft Knowledge Appropriate Design Appropriate Sampling Decisions Ensure Research Ethics Data Collection & Management Data Analysis Interpretation Dissemination Ongoing Research
  2. 2. Visual Analysis <ul><li>Only interventions which lead to marked changes in targets will be viewed as significant </li></ul><ul><li>Clinical and experimental significance coincide more often when using visual analysis as compared with statistical analysis </li></ul>
  3. 3. Visual Analysis <ul><li>Changes in means </li></ul><ul><ul><li>Changes in average rates of performance when phases shift </li></ul></ul><ul><li>Changes in level </li></ul><ul><ul><li>Shifts or discontinuity in performance when phases shift </li></ul></ul>
  4. 4. Visual Analysis <ul><li>Overlap </li></ul><ul><ul><li>How many data point values co-occur across phases </li></ul></ul><ul><li>Latency </li></ul><ul><ul><li>The amount of time between phase shifts and observed performance changes </li></ul></ul>
  5. 5. Visual Analysis <ul><li>Changes in trend </li></ul><ul><ul><li>Changes in the systematic increase or decrease in behavior when phases shift </li></ul></ul><ul><li>Variability and stability </li></ul><ul><ul><li>How consistent the patterns of performance are within phases </li></ul></ul><ul><li>Reliability of data </li></ul><ul><ul><li>- An important consideration in visual analysis, as it is with all research </li></ul></ul><ul><ul><li>- Inter Observer Agreement </li></ul></ul>
  6. 6. Visual Analysis <ul><li>Data that have minimal variability, high consistency, relatively long phases, changes in means, levels, or trends with minimal latency most easily demonstrate causality </li></ul><ul><li>Statistical Analyses are warranted in single subject research when: </li></ul><ul><ul><li>Baseline data are unstable </li></ul></ul><ul><ul><li>New interventions are being investigated </li></ul></ul><ul><ul><li>When the participants' environments have high variability </li></ul></ul><ul><ul><li>When small changes in a target may be important </li></ul></ul>
  7. 7. Lab Assignment <ul><li>Download the data set “ SOWK 468 SSD Data Sets,” and the file ”Visual Analysis Instructions” </li></ul><ul><li>Open the data set and follow the instructions during this lab session to create a graph of the ABAB design data and the Multiple Baseline (MB) data </li></ul><ul><li>Apply the elements of visual analysis to the following data </li></ul>

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