Using W3 CSV standard https://www.w3.org/TR/tabular-data-primer/ to see how we would like to extend it to work with statistics type data.

tasks.csv

tasks.csv-metadata.json

{
  "@context": "http://www.w3.org/ns/csvw",
  "tableSchema": {
    "columns": [
      {
        "titles": "date",
        "datatype": "date"
      },
      {
        "titles": "category",
        "datatype": {
          "base": "factor",
          "levels": {
            "job": "preparing for a job after PhD, such as career events or writing resume",
            "background": "background writing or literature review",
            "draft": "writing new content",
            "software": "general software that implements the described techniques",
            "revise": "revising or editing existing content",
            "support": "peripheral tasks, such as meetings, writing group, or preparing notes",
            "example": "creating, investigating, or implementing examples"
          }
        },
        "dc:description": "how it relates to the greater goal of completing the dissertation"
      },
      {
        "titles": "task",
        "dc:description": "description of the task, which should be SMART (specific, measurable, achievable, relevant, time bound)"
      },
      {
        "titles": "complete",
        "datatype": "boolean",
        "dc:description": "task completed or not"
      },
      {
        "titles": "notes",
        "dc:description": "any additional notes on the work"
      }
    ]
  },
  "url": "tasks.csv"
}

"factor" datatype is not supported in the standard- it's an example of the type of extension that would be handy for statistical applications.