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Designing Video for Massive Open Online-Education:<br />

Conceptual Challenges from a Learner-Centered Perspective<br />

Carmen Zahn, Karsten Krauskopf, Jonas Kiener, Friedrich W. Hesse<br />

Table 1. Measures grouped into three levels .<br />

Level Variable Measure<br />

1: Cognitive learning<br />

outcome<br />

History content knowledge<br />

acquisition<br />

Factual Knowledge Test<br />

Picture Recognition Test<br />

2: Surface level effects on<br />

collaboration and learning<br />

Performance, collaboration<br />

and learning<br />

Number of panels created in<br />

partnership<br />

Number of comments<br />

Length of comments<br />

Collaboration index<br />

3: Deeper level effects on<br />

collaboration and learning<br />

Performance, collaboration<br />

and learning quality<br />

Number of panels referring to<br />

details<br />

Number of utterances in<br />

comments addressing historical<br />

content<br />

Number of utterances in<br />

comments addressing filmic style<br />

Number of utterances in<br />

comments<br />

integrating aspects of historical<br />

content and filmic style<br />

Results<br />

(M = 1.8, SD = 0.7)<br />

Comparability of the Conditions. To ensure comparability<br />

of the two conditions a number of control variables<br />

were investigated prior to analysis. Participants in both<br />

conditions did not differ with regard to age, expertise in<br />

technological and film/media production, interest in the<br />

historical content, or factual knowledge of the historical<br />

context (all p > .10). Similarly, chi-square tests on gender<br />

and gender composition of dyads (same gender vs. mixed)<br />

did not yield significance (p > .10). Thus, conditions were<br />

considered comparable.<br />

Furthermore, we examined the named control variables,<br />

to investigate whether participants on average exhibited<br />

medium level values as we expected. With respect<br />

to domain-specific knowledge, dyads’ pre-questionnaire<br />

scores were above average with a mean of M = 9.0 (SD<br />

= 1.3) correct answers out of 12. Similarly, participants’<br />

interests in the historical content (M = 3.5, SD = 0.4, theoretical<br />

maximum = 5) and participants’ prior computer<br />

experience (M = 3.5, SD = 0.5, theoretical maximum = 5)<br />

were also higher than average. Their self-reported expertise<br />

in film and media production, however, was very low<br />

Knowledge Acquisition. We compared the conditions with<br />

regard to participants’ performance in the post-experimental<br />

factual-knowledge test on the historical content. Test<br />

performance was in general above average (M = 33.1, SD =<br />

2.4, theoretical maximum = 45). We did not find a significant<br />

difference between conditions, t(34) = -0.80, p = .43. This<br />

indicates that in both conditions, participants were equally<br />

successful in understanding the content of the video and<br />

the historical material. Yet, marginally significant differences<br />

between the conditions were found with regard to<br />

the visual recognition test. A t-test revealed a marginally<br />

significant effect, t(34) = 1.79, p = .08, d = 0.60, showing a<br />

better performance in the picture recognition test for the<br />

dyads in the design condition (M = 25.7, SD = 1.3 compared<br />

to the discussion condition, M = 24.9, SD = 1.4, respectively).<br />

Although just a trend, this might indicate that the students<br />

with a design task instruction, seemed to have paid more<br />

joint attention to visual information than the students discussing<br />

the visual content.<br />

Table 2: Between group comparisons of indicators for cognitive<br />

learning outcome.<br />

Research Track |164

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