Search for tag: "threat"

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5.3 Probability sampling \| Quantitative methods \|… duration 4 minutes 34 seconds 5.3 Probability sampling \| Quantitative methods \|… 5.3 Probability sampling \| Quantitative methods \| Sampling \| UvA	5.3 Probability sampling \| Quantitative methods \| Sampling \| UvA This video explains the essential features of probability sampling is. You learn why probability (or random) sampling minimizes the selection threat to external validity. In the next videos different… external validity selection threat random sampling random sample aselecte steekproef toevalssteekproef probabilistische steekproef willekeurige steekproef willekeurige steekproeftrekking externe validiteit From Sander Birkhoff 0 likes 1 plays 0 Language English - en Department FMG
5.1 External validity threats \| Quantitative… duration 4 minutes 56 seconds 5.1 External validity threats \| Quantitative… 5.1 External validity threats \| Quantitative methods \| Sampling \| UvA	5.1 External validity threats \| Quantitative methods \| Sampling \| UvA This video discusses different threats to external validity: history threat, setting threat (pretesting and reactivity) and selection threat. You also learn what you can do to reduce these threats to… generalizability history threat setting threat pretesting reactivity selection threat externe validiteit bedreigingen externe validiteit interactief testeffect selectie locatie From Sander Birkhoff 0 likes 2 plays 0 Language English - en Department FMG
3.8 Matching \| Quantitative methods \| Research… duration 6 minutes 31 seconds 3.8 Matching \| Quantitative methods \| Research… 3.8 Matching \| Quantitative methods \| Research Designs \| UvA	3.8 Matching \| Quantitative methods \| Research Designs \| UvA This video introduces the concept of matching participants. Sometimes random assignment is impossible, which increases the selection threat to internal validity. One way to mitigate this threat is to… undermatching regression to the mean random assignment selection threat regressie naar het gemiddelde ondermatching willekeurige toewijzing selectie criterium From Sander Birkhoff 0 likes 2 plays 0 Language English - en Department FMG
3.8 Matching \| Quantitative methods \| Research… duration 6 minutes 31 seconds 3.8 Matching \| Quantitative methods \| Research… 3.8 Matching \| Quantitative methods \| Research Designs \| UvA	3.8 Matching \| Quantitative methods \| Research Designs \| UvA This video introduces the concept of matching participants. Sometimes random assignment is impossible, which increases the selection threat to internal validity. One way to mitigate this threat is to… undermatching regression to the mean random assignment selection threat From Sander Birkhoff 0 likes 1 plays 0 Language English - en Department FMG
Quasi-Experimental Designs duration 6 minutes 34 seconds Quasi-Experimental Designs Quasi-Experimental Designs	Quasi-Experimental Designs This video provides an introduction to quasi-experimental designs. This video is part of a project at the Univeristy of Amsterdam in which instruction videos were produced to supplement a course… aggressiveness designs pretest game variable posttest effect participants assignment intervention threat exposure series control history selection comparison differences parents children From mhamel1 0 likes 2 plays 0 Language English - en Department FMG