binnen-subject designs Flashcards

STAP 5 &6

1
Q

binnen-subject design

A

= groep participanten doorloopt alle condities

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2
Q

karakteristieken binnen-subj design

A
  • vgl 2 of meer condities dr = groep te meten in elke conditie
  • repeated measures design: elk participant doorloopt alle condities (sequentieel of parallel)
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3
Q

bedreigingen interne validiteit

A
  1. history (GB in omgeving)
  2. maturatie (veranderingen bij participanten)
    3.instrumentatie ( verandering in meetinstrumenten)
    4.statistische regressie (regression toward the mean)
    5.orde effecten
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4
Q

orde effecten

A

ervaring getest worden in cond 1 heeft invlo op scores cond 2
- progressive error
-carry-over effecten

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5
Q

progressive error

A

algemene ervaring cond 1 invl op cond 2 vb leereffecten, vermoeidheid

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6
Q

carry-over effecten

A

specifieke conditie leidt tot verandering in daaropvolgende ( vb strategie aanleren en blijven gebruiken)

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7
Q

omgaan met tijdsgerelateerde bedreigingen

A
  1. tijd controleren
  2. overgaan op tss-subject design
  3. contrabalanceren
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8
Q

voor- en nadelen

A

+ kleinere n
+ elimineert problemen indiv versch
- bedreiging interne val dr potentiële tijdsgerelateerde confounders
- drop-out +nsterkere vrijwilligers bias

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9
Q

matched-subjects design

A

versch groepen participanten MR elke participant in conditie 1 gematcht met participant cond 2 (equivalente participanten in beide cond)

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