Access data from the Mind Research Repository

julia> using DataDeps, MindResearchRepository

julia> println.(sort(collect(keys(DataDeps.registry))));

julia> using MindResearchRepository

julia> fnms = datafiles(datadep"RisseKliegl2011")
This program has requested access to the data dependency RisseKliegl2011.
which is not currently installed. It can be installed automatically, and you will not see this message again.

Dataset: Adult age differences in the perceptual span during reading
Website: http://openscience.uni-leipzig.de/index.php/mr2/article/view/14
Author: Sarah Risse, Reinhold Kliegl
Date of Publication: 2013-03-17
Date of Creation: 2011-04-04
Date of Last Modification: 2013-04-04

Following up on research suggesting an age-related reduction in the rightward
extent of the perceptual span during reading (Rayner, Castelhano, & Yang,
2009), we compared old and young adults in an N+2-boundary paradigm in which a
nonword preview of word N+2 or word N+2 itself is replaced by the target word
once the eyes cross an invisible boundary located after word N. The intermediate
word N+1 was always three letters long. Gaze durations on word N+2 were
significantly shorter for identical than nonword N+2 preview both for young and
for old adults with no significant difference in this preview benefit. Young
adults, however, did modulate their gaze duration on word N more strongly than
old adults in response to the difficulty of the parafoveal word N+1. Taken
together, the results suggest a dissociation of preview benefit and parafoveal-
on-foveal effect. Results are discussed in terms of age-related decline in
resilience towards distributed processing while simultaneously preserving the
ability to integrate parafoveal information into foveal processing. As such, the
present results relate to proposals of regulatory compensation strategies older
adults use to secure an overall reading speed very similar to that of young
adults.  DOI: 10.1037/a0021616   Risse, S., & Kliegl, R. (2011). Adult age
differences in the perceptual span during reading.   Psychology and Aging, 26,
451-460.

Please cite this paper: http://openscience.uni-leipzig.de/index.php/mr2/article/download/14/9



Do you want to download the dataset from http://openscience.uni-leipzig.de/Rpository/src/contrib/RisseKliegl2011_1.0.tar.gz to "/home/bates/.julia/datadeps/RisseKliegl2011"?
[y/n]
y
┌ Info: Downloading
│   source = "http://openscience.uni-leipzig.de/Rpository/src/contrib/RisseKliegl2011_1.0.tar.gz"
│   dest = "/home/bates/.julia/datadeps/RisseKliegl2011/RisseKliegl2011_1.0.tar.gz"
│   progress = 1.0
│   time_taken = "1.86 s"
│   time_remaining = "0.0 s"
│   average_speed = "629.376 KiB/s"
│   downloaded = "1.141 MiB"
│   remaining = "0 bytes"
└   total = "1.141 MiB"
Dict{Symbol,Array{String,1}} with 3 entries:
  :pdf => ["/home/bates/.julia/datadeps/RisseKliegl2011/RisseKliegl2011/inst/preprint/14-93-1-CE.pdf", "/home/bates/.julia/datadeps/RisseKliegl2011/RisseKliegl2…
  :R   => ["/home/bates/.julia/datadeps/RisseKliegl2011/RisseKliegl2011/inst/RisseKliegl.2010_analyses.R"]
  :rda => ["/home/bates/.julia/datadeps/RisseKliegl2011/RisseKliegl2011/inst/RK2010_data.rda"]

julia> using RData

julia> dat = load(first(fnms[:rda]))
Dict{String,Any} with 3 entries:
  "em_n0" => 9023×27 DataFrames.DataFrame. Omitted printing of 21 columns…
  "em_n1" => 9023×26 DataFrames.DataFrame. Omitted printing of 20 columns…
  "em_n2" => 9023×27 DataFrames.DataFrame. Omitted printing of 21 columns…

julia> using DataFrames

julia> describe(dat["em_n0"])
27×8 DataFrame
│ Row │ variable │ mean         │ min  │ median │ max   │ nunique │ nmissing │ eltype                   │
│     │ Symbol   │ Union…       │ Any  │ Union… │ Any   │ Union…  │ Union…   │ DataType                 │
├─────┼──────────┼──────────────┼──────┼────────┼───────┼─────────┼──────────┼──────────────────────────┤
│ 1   │ id       │              │ 1    │        │ 140   │ 79      │          │ CategoricalString{UInt8} │
│ 2   │ sn       │ 81.6724      │ 1.0  │ 83.0   │ 160.0 │         │          │ Float64                  │
│ 3   │ wn       │ 4.98881      │ 3.0  │ 5.0    │ 7.0   │         │          │ Float64                  │
│ 4   │ nw       │ 9.68569      │ 8.0  │ 10.0   │ 11.0  │         │          │ Float64                  │
│ 5   │ pvn2     │ -0.000387898 │ -0.5 │ -0.5   │ 0.5   │         │          │ Float64                  │
│ 6   │ lxn1     │ -0.0185637   │ -0.5 │ -0.5   │ 0.5   │         │          │ Float64                  │
⋮
│ 21  │ tvt      │ 263.709      │ 52.0 │ 228.0  │ 750.0 │         │ 500      │ Float64                  │
│ 22  │ prx      │ 0.138727     │ 0.0  │ 0.0    │ 1.0   │         │ 1310     │ Float64                  │
│ 23  │ psk      │ 0.0592755    │ 0.0  │ 0.0    │ 1.0   │         │ 824      │ Float64                  │
│ 24  │ prg      │ 0.0760448    │ 0.0  │ 0.0    │ 1.0   │         │ 2        │ Float64                  │
│ 25  │ ilp      │ 0.370802     │ 0.0  │ 0.4    │ 1.0   │         │ 158      │ Float64                  │
│ 26  │ age      │ -0.0136872   │ -0.5 │ -0.5   │ 0.5   │         │          │ Float64                  │
│ 27  │ sn1      │ -0.0324172   │ -0.5 │ -0.5   │ 0.5   │         │          │ Float64                  │